Write down the solution for this math problem: Solve -56*r + 618 = -15*r + 62*r for r.
answer: 6

Write down the solution for this math problem: Solve 0 = -331*n - 987*n - 156728 + 35472 for n.
answer: -92

Write down the solution for this math problem: Solve 90*t = 196*t - 318 for t.
answer: 3

Write down the solution for this math problem: Solve 61*g - 2250 = -10*g - 197 + 1639 for g.
answer:
52