Question

-(5z + 12) = 18show how to solve the given equation

Answer 1

Given:

-(5z + 12) = 18

First Step:

Use distributive property and expand the parenthesis.

Also distribute the negative symbol

-5z + (-12) = 18

-5z - 12 = 18

Second Step:

Add 12 to both sides of the equation.

-5z - 12 + 12 = 18 + 12

-5z = 30

Third Step:

Divide both sides by -5

`\begin{gathered} (-5z)/(-5)=(30)/(-5) \\ \\ z\text{ = -6} \end{gathered}`

ANSWER:

z = -6