Write down the solution for this math problem: Solve -87*a = 1480 - 156 + 155 for a.
answer: -17

Write down the solution for this math problem: Solve 12*t - 40*t + 112 = 0 for t.
answer: 4

Write down the solution for this math problem: Solve -33*d + 84 = 21*d - 12*d for d.
answer: 2

Write down the solution for this math problem: Solve -58*g + 165*g = -642 for g.
answer:
-6