Write down the solution for this math problem: Solve -70*j + 19*j = 357 for j.
answer: -7

Write down the solution for this math problem: Solve -8*n = -20 - 4 for n.
answer: 3

Write down the solution for this math problem: Solve -29*v + 26*v = 0 for v.
answer: 0

Write down the solution for this math problem: Solve 8*x + 72 = 26*x for x.
answer:
4