question: Teacher asked me this: Solve 5*a + 12 = -3 for a.
++++++++++
answer: -3
Solve -r + 5*r - 20 = 0 for r.
Solve this plz.

A: 5
QUESTION: Math problem: Solve 0 = -188*i + 70704333 - 70705273 for i.
ANS: -5
Q: What is the solution?
Solve -823 + 1030 = 142*o + 4041 for o.

A: -27
Write down the solution for this math problem: Solve -883*q + 812*q - 1416 = 1353 for q.
answer: -39
question: Teacher asked me this: Solve 0 = 209*u - 103*u + 586*u - 12456 for u.
++++++++++
answer:
18