Question

Z + 21/–1 = –3. z+21/-1 is a fraction

Answer 1

No Answer

Explanation:

`z+(21)/(-1) =-3*z+(21)/(-1)`

cancel out same on both sides

`0=-3`

N/A

Answer 2

1 Move the negative sign to the left.

z-21=-3

2 Add 21 to both sides.

z=-3+21z=−3+21

3 Simplify -3+21 to 18

z=18

Explanation:

hope it helps