Q: Solve 36*f = 45*f + 63 for f.

A: -7
Q: Solve:
Solve -u - 84 + 79 = 0 for u.

A: -5
Question: What is the solution?

Solve -2716*x - 12420 = -646*x for x.

Answer: -6
Problem: Math Problem
Solve 214*u - 12 = 218*u for u.

A: -3
Question:
Solve 1217*j - 3266 - 5372 = 18136 for j..

Answer:
22
Question: What is the solution?

Solve 90 = 21*c - 6*c for c.

Answer:
6