Write down the solution for this math problem: Solve -6358 = -1983*x - 53950 for x.
answer: -24

Write down the solution for this math problem: Solve 0 = -85*r + 199*r - 134*r - 620 for r.
answer: -31

Write down the solution for this math problem: Solve 695 = -198*h + 154 - 845 for h.
answer: -7

Write down the solution for this math problem: Solve 915 = -48*i + 228 - 81 for i.
answer:
-16