Algebra Examples

$\frac{1}{a} x - 4 = 9$

Step 1

Combine $\frac{1}{a}$ and $x$ .

$\frac{x}{a} - 4 = 9$

Step 2

Move all terms not containing $x$ to the right side of the equation.

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Step 2.1

Add $4$ to both sides of the equation.

$\frac{x}{a} = 9 + 4$

Step 2.2

Add $9$ and $4$ .

$\frac{x}{a} = 13$

Step 3

Multiply both sides by $a$ .

$\frac{x}{a} a = 13 a$

Step 4

Simplify the left side.

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Step 4.1

Cancel the common factor of $a$ .

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Step 4.1.1

Cancel the common factor.

$\frac{x}{a} a = 13 a$

Step 4.1.2

Rewrite the expression.

$x = 13 a$