Mathway | Problèmes fréquents

Problèmes fréquents

Rang	Matière	Problème	Problème de formatage
9501	Resolva para x	x/(x+7)-7/(x-7)=(x^2+49)/(x^2-49)	$\frac{x}{x + 7} - \frac{7}{x - 7} = \frac{x^{2} + 49}{x^{2} - 49}$
9502	Resolva para x	x/(x-1)+1/(x-6)=(2x-7)/(x^2-7x+6)	$\frac{x}{x - 1} + \frac{1}{x - 6} = \frac{2 x - 7}{x^{2} - 7 x + 6}$
9503	Resolva para x	x/-6=2	$\frac{x}{- 6} = 2$
9504	Resolva para x	x/6=2*15	$\frac{x}{6} = 2 \cdot 15$
9505	Resolva para x	x/5=6	$\frac{x}{5} = 6$
9506	Resolva para x	x/6=5/2	$\frac{x}{6} = \frac{5}{2}$
9507	Resolva para x	x/7=-8	$\frac{x}{7} = - 8$
9508	Resolva para x	x/7=9	$\frac{x}{7} = 9$
9509	Resolva para x	x/7-4=4	$\frac{x}{7} - 4 = 4$
9510	Resolva para x	-x/7-4=5	$- \frac{x}{7} - 4 = 5$
9511	Resolva para x	x/7+x/3=20	$\frac{x}{7} + \frac{x}{3} = 20$
9512	Resolva para x	x/7800=9/100	$\frac{x}{7800} = \frac{9}{100}$
9513	Resolva para x	x/8+5=x/8	$\frac{x}{8} + 5 = \frac{x}{8}$
9514	Resolva para x	x/8=11/3	$\frac{x}{8} = \frac{11}{3}$
9515	Resolva para x	x/8=7/12	$\frac{x}{8} = \frac{7}{12}$
9516	Resolva para x	x^2+9^2=16^2	$x^{2} + 9^{2} = 16^{2}$
9517	Resolva para x	x^2+y^2=81	$x^{2} + y^{2} = 81$
9518	Resolva para x	x^2+y^2=10	$x^{2} + y^{2} = 10$
9519	Resolva para x	x^2+14x+47=0	$x^{2} + 14 x + 47 = 0$
9520	Resolva para x	racine carrée de 4x-7=7	$\sqrt{4 x - 7} = 7$
9521	Resolva para x	x^2+6x=96	$x^{2} + 6 x = 96$
9522	Resolva para x	x^2+8x=713	$x^{2} + 8 x = 713$
9523	Resolva para x	x/(x-2)-(3x)/(x^2-x-2)=5/(x+1)	$\frac{x}{x - 2} - \frac{3 x}{x^{2} - x - 2} = \frac{5}{x + 1}$
9524	Resolva para x	x^2+12x+25=0	$x^{2} + 12 x + 25 = 0$
9525	Resolva para n	0.3(n-5)=0.4-0.2(n-7)	$0.3 (n - 5) = 0.4 - 0.2 (n - 7)$
9526	Resolva para x	x^2-8x-5=0	$x^{2} - 8 x - 5 = 0$
9527	Resolva para x	x^3-x=4x^2-4	$x^{3} - x = 4 x^{2} - 4$
9528	Resolva para x	x^3-12x^2+27x=0	$x^{3} - 12 x^{2} + 27 x = 0$
9529	Resolva para x	x^3-12x^2+32x=0	$x^{3} - 12 x^{2} + 32 x = 0$
9530	Resolva para x	x^3=95	$x^{3} = 95$
9531	Resolva para x	x^3-10x^2+21x=0	$x^{3} - 10 x^{2} + 21 x = 0$
9532	Resolva para x	x^3-34x-12=0	$x^{3} - 34 x - 12 = 0$
9533	Resolva para x	x^4-3x^3-15x^2-17x-6=0	$x^{4} - 3 x^{3} - 15 x^{2} - 17 x - 6 = 0$
9534	Resolva para x	x^2-x-42=0	$x^{2} - x - 42 = 0$
9535	Resolva para x	x^3+4x^2-7x-10=0	$x^{3} + 4 x^{2} - 7 x - 10 = 0$
9536	Resolva para x	x^3=125/216	$x^{3} = \frac{125}{216}$
9537	Resolva para x	x^3=64/27	$x^{3} = \frac{64}{27}$
9538	Resolva para x	x^3=-17	$x^{3} = - 17$
9539	Resolva para x	x^2=147	$x^{2} = 147$
9540	Resolva para x	x^2=150	$x^{2} = 150$
9541	Resolva para x	x^2=34	$x^{2} = 34$
9542	Resolva para x	x^2=-32	$x^{2} = - 32$
9543	Resolva para x	x^2-1 1/4*x+3/8=0	$x^{2} - 1 \frac{1}{4} \cdot x + \frac{3}{8} = 0$
9544	Resolva para x	x^2=9x-20	$x^{2} = 9 x - 20$
9545	Resolva para x	x^2-2x=x(2+x)	$x^{2} - 2 x = x (2 + x)$
9546	Resolva para x	x^2-16x+28=0	$x^{2} - 16 x + 28 = 0$
9547	Resolva para x	x^2-5x-10=0	$x^{2} - 5 x - 10 = 0$
9548	Resolva para x	x^2-65x+450=0	$x^{2} - 65 x + 450 = 0$
9549	Resolva para x	x^4-8x+16=0	$x^{4} - 8 x + 16 = 0$
9550	Resolva para x	x^5=243	$x^{5} = 243$
9551	Resolva para x	x^6-35x^3+216=0	$x^{6} - 35 x^{3} + 216 = 0$
9552	Resolva para x	(x+10)/(x+7)=8/7	$\frac{x + 10}{x + 7} = \frac{8}{7}$
9553	Resolva para x	x^4-11x^2+24=0	$x^{4} - 11 x^{2} + 24 = 0$
9554	Resolva para x	(x+12)/3=(5+x)/2	$\frac{x + 12}{3} = \frac{5 + x}{2}$
9555	Resolva para x	(x+2)/3=6	$\frac{x + 2}{3} = 6$
9556	Resolva para x	(x+18)/-4=8	$\frac{x + 18}{- 4} = 8$
9557	Resolva para x	(x+2)/(2x+5)=2/3	$\frac{x + 2}{2 x + 5} = \frac{2}{3}$
9558	Resolva para x	(x-3)/4=1/4	$\frac{x - 3}{4} = \frac{1}{4}$
9559	Resolva para x	(x-2)/(2x)+1=(x+1)/x	$\frac{x - 2}{2 x} + 1 = \frac{x + 1}{x}$
9560	Resolva para x	(x-1)/3=(x+1)/5	$\frac{x - 1}{3} = \frac{x + 1}{5}$
9561	Resolva para x	(x+4)/4=(x-2)/2	$\frac{x + 4}{4} = \frac{x - 2}{2}$
9562	Resolva para x	(x+5)/(x-1)=6/(x-1)	$\frac{x + 5}{x - 1} = \frac{6}{x - 1}$
9563	Resolva para x	0.09-0.01(x+1)=-0.03(4-x)	$0.09 - 0.01 (x + 1) = - 0.03 (4 - x)$
9564	Resolva para x	(x-7)/5+7/5=-x/2	$\frac{x - 7}{5} + \frac{7}{5} = - \frac{x}{2}$
9565	Resolva para x	(x-7)/9-x/7=(7x-9)/6	$\frac{x - 7}{9} - \frac{x}{7} = \frac{7 x - 9}{6}$
9566	Resolva para x	(x-5)/x=3/8	$\frac{x - 5}{x} = \frac{3}{8}$
9567	Resolva para x	0.4x+0.7=-0.9	$0.4 x + 0.7 = - 0.9$
9568	Resolva para x	0.3x+40.35=4(x+0.3)	$0.3 \cdot x + 4 \cdot 0.35 = 4 (x + 0.3)$
9569	Resolva para x	0.34=x÷0.2	$0.34 = x \div 0.2$
9570	Resolva para x	0.2x+2.4=3.5-1.4x	$0.2 x + 2.4 = 3.5 - 1.4 x$
9571	Resolva para x	0.20(x)+0.25(14)=0.22(x+14)	$0.2 (x) + 0.25 (14) = 0.22 (x + 14)$
9572	Resolva para x	0.17x=3	$0.17 x = 3$
9573	Resolva para x	0.1x-19.9=0.03x+10.9	$0.1 x - 19.9 = 0.03 x + 10.9$
9574	Resolva para x	(x-3)/x=2/5	$\frac{x - 3}{x} = \frac{2}{5}$
9575	Resolva para x	0.8(7x+9)=4.3-(x-3)	$0.8 (7 x + 9) = 4.3 - (x - 3)$
9576	Resolva para x	-0.9x+2.65=-0.5x+5.45	$- 0.9 x + 2.65 = - 0.5 x + 5.45$
9577	Resolva para x	0.5x-6=-4	$0.5 x - 6 = - 4$
9578	Resolva para x	0.8(x+300)=0.87x-271	$0.8 (x + 300) = 0.87 x - 271$
9579	Resolva para x	0.4x=2x+1.2	$0.4 x = 2 x + 1.2$
9580	Resolva para x	0.6666666666666667x-9=0.3333333333333333x	$0.\overline{6} x - 9 = 0.\overline{3} x$
9581	Resolva para x	0=-1/2x+2	$0 = - \frac{1}{2} x + 2$
9582	Resolva para x	0=4x+3	$0 = 4 x + 3$
9583	Resolva para x	0=4x+5	$0 = 4 x + 5$
9584	Resolva para x	0=4x-1	$0 = 4 x - 1$
9585	Resolva para x	0=x+(-1.4)	$0 = x + (- 1.4)$
9586	Resolva para x	1.3x-0.32=0.98	$1.3 x - 0.32 = 0.98$
9587	Resolva para x	1 7/81 1/4=1 1/3x	$1 \frac{7}{8} \cdot 1 \frac{1}{4} = 1 \frac{1}{3} \cdot x$
9588	Resolva para x	0.8x-14=2.3-22	$0.8 x - 14 = 2.3 - 22$
9589	Resolva para x	1+1/x=20/(x^2)	$1 + \frac{1}{x} = \frac{20}{x^{2}}$
9590	Resolva para x	1.5(x+8)=5.7+0.8x	$1.5 (x + 8) = 5.7 + 0.8 x$
9591	Resolva para x	1.5x-18.4=0.6x-22.9	$1.5 x - 18.4 = 0.6 x - 22.9$
9592	Resolva para x	1.8x-3(1.1-0.9x)=8.4	$1.8 x - 3 (1.1 - 0.9 x) = 8.4$
9593	Resolva para x	0.8x-500=4650	$0.8 x - 500 = 4650$
9594	Resolva para x	1.8+7x=9.5-4x	$1.8 + 7 x = 9.5 - 4 x$
9595	Resolva para x	1.8=2^(4-x)	$1.8 = 2^{4 - x}$
9596	Resolva para x	1-5/8x=2-2/3x	$1 - \frac{5}{8} x = 2 - \frac{2}{3} x$
9597	Resolva para x	112=-8x	$112 = - 8 x$
9598	Resolva para x	11=4x-6	$11 = 4 x - 6$
9599	Resolva para x	10x-1=4x-43	$10 x - 1 = 4 x - 43$
9600	Resolva para x	11(x-3)=5(x+3)	$11 (x - 3) = 5 (x + 3)$