Answer:
153
Step-by-step explanation:
ans.
5x=85
x =85÷5
=17
9x=17x9
=153
57-12= 3x+12-12
45=3x
Divide by 3
x=15
Check answer
57= 3(15)+12
57=57
Answer is correct.
x= 15
Guess I'll agree with the other person.
