Algebra Examples

$k (x) = 7 x$ , $k (x) = 49$

Step 1

Substitute $49$ for $k (x)$ .

$49 = 7 x$

Step 2

Solve for $x$ .

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Step 2.1

Rewrite the equation as $7 x = 49$ .

$7 x = 49$

Step 2.2

Divide each term in $7 x = 49$ by $7$ and simplify.

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Step 2.2.1

Divide each term in $7 x = 49$ by $7$ .

$\frac{7 x}{7} = \frac{49}{7}$

Step 2.2.2

Simplify the left side.

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Step 2.2.2.1

Cancel the common factor of $7$ .

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Step 2.2.2.1.1

Cancel the common factor.

$\frac{7 x}{7} = \frac{49}{7}$

Step 2.2.2.1.2

Divide $x$ by $1$ .

$x = \frac{49}{7}$

$x = \frac{49}{7}$

$x = \frac{49}{7}$

Step 2.2.3

Simplify the right side.

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Step 2.2.3.1

Divide $49$ by $7$ .

$x = 7$

$x = 7$

$x = 7$

$x = 7$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$