Write down the solution for this math problem: Solve 12*x + 44 = x for x.
answer: -4

Write down the solution for this math problem: Solve 52 = 75*q - 78*q + 7 for q.
answer: -15

Write down the solution for this math problem: Solve 0 = 31*l - 26*l - 15 for l.
answer: 3

Write down the solution for this math problem: Solve -260 + 89 = 19*o for o.
answer:
-9