Write down the solution for this math problem: Solve -170*y + 2852 = 642 for y.
answer: 13

Write down the solution for this math problem: Solve 207*x = 60 - 1320 - 1224 for x.
answer: -12

Write down the solution for this math problem: Solve -37*c - 639 = 34*c for c.
answer: -9

Write down the solution for this math problem: Solve -y + 135 - 131 = 0 for y.
answer:
4