Question

42 = -7 (z - 3)

z = ?

Answer 1

42=-7z+21
42-21=-7z
21/-7=-7z/-7
-3=z

Answer 2

The answer to your question is z = -3

Explanation:

Expand 42 = -7(z - 3)

42 = -7z + 21

Simplify 7z = -42 + 21

7z = -21

Clear z z =
`(-21)/(7)`

z = -3