Answer:
No Answer
Step-by-step explanation:
[tex]z+\frac{21}{-1} =-3*z+\frac{21}{-1}[/tex]
cancel out same on both sides
[tex]0=-3[/tex]
N/A
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
hope it helps
