Pre-Algebra Examples

$2 - (7 - x) = 19$

Step 1

Simplify $2 - (7 - x)$ .

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Step 1.1

Simplify each term.

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Step 1.1.1

Apply the distributive property.

$2 - 1 \cdot 7 - - x = 19$

Step 1.1.2

Multiply $- 1$ by $7$ .

$2 - 7 - - x = 19$

Step 1.1.3

Multiply $- - x$ .

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Step 1.1.3.1

Multiply $- 1$ by $- 1$ .

$2 - 7 + 1 x = 19$

Step 1.1.3.2

Multiply $x$ by $1$ .

$2 - 7 + x = 19$

Step 1.2

Subtract $7$ from $2$ .

$- 5 + x = 19$

Step 2

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

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Step 2.1

Add $5$ to both sides of the equation.

$x = 19 + 5$

Step 2.2

Add $19$ and $5$ .

$x = 24$