Algebra Examples

$- 7 (z + 4) - 7$ , $z = 3$

Step 1

Replace the variable $z$ with $3$ in the expression.

$- 7 ((3) + 4) - 7$

Step 2

Simplify each term.

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Step 2.1

Add $3$ and $4$ .

$- 7 \cdot 7 - 7$

Step 2.2

Multiply $- 7$ by $7$ .

$- 49 - 7$

Step 3

Subtract $7$ from $- 49$ .

$- 56$