Question

what is the answer to $\frac{z-5}{z+1}=\frac{3}{2}$

Answer 1

the correct answer is Z=-13

Answer 2

Answer: z=-13

Explanation: z-5/z+1= 3/2

2(z-5)=3(z+1) (cross multiplication)
2z-10=3z+3 (remove parenthesis)
2z-3z=10+3 (collect like terms)
-z=13
z=-13