Pre-Algebra Examples

$y = 2 x - 5$

Step 1

Rewrite the equation as $2 x - 5 = y$ .

$2 x - 5 = y$

Step 2

Add $5$ to both sides of the equation.

$2 x = y + 5$

Step 3

Divide each term in $2 x = y + 5$ by $2$ and simplify.

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Step 3.1

Divide each term in $2 x = y + 5$ by $2$ .

$\frac{2 x}{2} = \frac{y}{2} + \frac{5}{2}$

Step 3.2

Simplify the left side.

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Step 3.2.1

Cancel the common factor of $2$ .

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Step 3.2.1.1

Cancel the common factor.

$\frac{2 x}{2} = \frac{y}{2} + \frac{5}{2}$

Step 3.2.1.2

Divide $x$ by $1$ .

$x = \frac{y}{2} + \frac{5}{2}$