Write down the solution for this math problem: Solve -10*r + 27 = -r for r.
answer: 3

Write down the solution for this math problem: Solve 0 = 4*i - 18 - 2 for i.
answer: 5

Write down the solution for this math problem: Solve 230*m = 243 + 217 for m.
answer: 2

Write down the solution for this math problem: Solve -11457*d + 5548*d = 7925*d - 1341898 for d.
answer:
97