Question

What is the value of z in the equation 2(4z − 9 − 7) = 166 − 46?

Answer 1

z = 19.

Explanation:

2(4z − 9 − 7) = 166 − 46

2(4z − 9 − 7) = 120

Divide both sides by 2:

4z − 9 − 7 = 60

4z = 76

z = 19.

Answer 2

z = 19

Explanation:

Given

2(4z - 9 - 7) = 166 - 46 ← simplify both sides

2(4z - 16) = 120 ← distribute parenthesis on left side

8z - 32 = 120 ( add 32 to both sides )

8z = 152 ( divide both sides by 8 )

z = 19