Answer:
a) -7 & b) -6
Step-by-step explanation:
Here,
a) x = 0
Solution ↦

b) x = -1
Solution ↦

X=32
Explanation: X/9-1=4
X/8=4
8x4=32
The answer is -25.8 because 5-10=-5, -5*5=-25, then you simplify fraction and add/subtract
I’m working on the same thing as well