Write down the solution for this math problem: Solve -948*a - 162*a + 5574 = 15387 + 68997 for a.
answer: -71

Write down the solution for this math problem: Solve 161*r - 153*r - 61 = 43 for r.
answer: 13

Write down the solution for this math problem: Solve 169*p - 832 - 1101 = 95 for p.
answer: 12

Write down the solution for this math problem: Solve 53*j = 146*j + 93 for j.
answer:
-1