Algebra Examples

$\frac{x}{2} = x + 4$

Step 1

Multiply both sides by $2$ .

$\frac{x}{2} \cdot 2 = (x + 4) \cdot 2$

Step 2

Simplify.

Tap for more steps...

Step 2.1

Simplify the left side.

Tap for more steps...

Step 2.1.1

Cancel the common factor of $2$ .

Tap for more steps...

Step 2.1.1.1

Cancel the common factor.

$\frac{x}{2} \cdot 2 = (x + 4) \cdot 2$

Step 2.1.1.2

Rewrite the expression.

$x = (x + 4) \cdot 2$

Step 2.2

Simplify the right side.

Tap for more steps...

Step 2.2.1

Simplify $(x + 4) \cdot 2$ .

Tap for more steps...

Step 2.2.1.1

Apply the distributive property.

$x = x \cdot 2 + 4 \cdot 2$

Step 2.2.1.2

Simplify the expression.

Tap for more steps...

Step 2.2.1.2.1

Move $2$ to the left of $x$ .

$x = 2 \cdot x + 4 \cdot 2$

Step 2.2.1.2.2

Multiply $4$ by $2$ .

$x = 2 x + 8$

Step 3

Solve for $x$ .

Tap for more steps...

Step 3.1

Move all terms containing $x$ to the left side of the equation.

Tap for more steps...

Step 3.1.1

Subtract $2 x$ from both sides of the equation.

$x - 2 x = 8$

Step 3.1.2

Subtract $2 x$ from $x$ .

$- x = 8$

Step 3.2

Divide each term in $- x = 8$ by $- 1$ and simplify.

Tap for more steps...

Step 3.2.1

Divide each term in $- x = 8$ by $- 1$ .

$\frac{- x}{- 1} = \frac{8}{- 1}$

Step 3.2.2

Simplify the left side.

Tap for more steps...

Step 3.2.2.1

Dividing two negative values results in a positive value.

$\frac{x}{1} = \frac{8}{- 1}$

Step 3.2.2.2

Divide $x$ by $1$ .

$x = \frac{8}{- 1}$

Step 3.2.3

Simplify the right side.

Tap for more steps...

Step 3.2.3.1

Divide $8$ by $- 1$ .

$x = - 8$