Write down the solution for this math problem: Solve 2796*x + 750 = 2871*x for x.
answer: 10

Write down the solution for this math problem: Solve 131*x = -1348 + 169 for x.
answer: -9

Write down the solution for this math problem: Solve -129*j - 1000 + 1387 = 0 for j.
answer: 3

Write down the solution for this math problem: Solve -8*w + 40 + 0 = 0 for w.
answer:
5