question: Teacher asked me this: Solve 30 = 35*c - 40 for c.
++++++++++
answer: 2
Solve -6538*r + 6173*r + 1460 = 0 for r.
Solve this plz.

A: 4
QUESTION: Math problem: Solve -713*r + 306*r = -336*r - 426 for r.
ANS: 6
Q: What is the solution?
Solve -7179*u = -7352*u - 346 for u.

A: -2
Write down the solution for this math problem: Solve -80*r + 384 = 16*r for r.
answer: 4
QUESTION: Math problem: Solve -3678*s + 3634*s + 572 = 0 for s.
ANS:
13