Write down the solution for this math problem: Solve 0 = 88*c - 94*c - 6 for c.
answer: -1

Write down the solution for this math problem: Solve -16028*w = -16089*w + 2135 for w.
answer: 35

Write down the solution for this math problem: Solve 406 = -26*d + 112*d - 196 for d.
answer: 7

Write down the solution for this math problem: Solve -31 + 33 = -2*t for t.
answer:
-1