Write down the solution for this math problem: Solve -5*r + 18 = -11*r for r.
answer: -3

Write down the solution for this math problem: Solve 141*d - 324*d = -139*d + 1144 for d.
answer: -26

Write down the solution for this math problem: Solve -3407*p + 3463*p - 952 = 0 for p.
answer: 17

Write down the solution for this math problem: Solve -281 = 1671*i - 1952 for i.
answer:
1