Algebra Examples

$- 8 - x = x - 4 x$

Step 1

Since $x$ is on the right side of the equation, switch the sides so it is on the left side of the equation.

$x - 4 x = - 8 - x$

Step 2

Subtract $4 x$ from $x$ .

$- 3 x = - 8 - x$

Step 3

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

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Step 3.1

Add $x$ to both sides of the equation.

$- 3 x + x = - 8$

Step 3.2

Add $- 3 x$ and $x$ .

$- 2 x = - 8$

Step 4

Divide each term in $- 2 x = - 8$ by $- 2$ and simplify.

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Step 4.1

Divide each term in $- 2 x = - 8$ by $- 2$ .

$\frac{- 2 x}{- 2} = \frac{- 8}{- 2}$

Step 4.2

Simplify the left side.

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Step 4.2.1

Cancel the common factor of $- 2$ .

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Step 4.2.1.1

Cancel the common factor.

$\frac{- 2 x}{- 2} = \frac{- 8}{- 2}$

Step 4.2.1.2

Divide $x$ by $1$ .

$x = \frac{- 8}{- 2}$

Step 4.3

Simplify the right side.

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Step 4.3.1

Divide $- 8$ by $- 2$ .

$x = 4$