Write down the solution for this math problem: Solve -2*s + 3 = 11 for s.
answer: -4

Write down the solution for this math problem: Solve -11*t + 69 = 12*t for t.
answer: 3

Write down the solution for this math problem: Solve -77*r - 245 + 14 = 0 for r.
answer: -3

Write down the solution for this math problem: Solve -192*a + 185*a = -7 for a.
answer:
1