Write down the solution for this math problem: Solve -13*d = 1 - 27 for d.
answer: 2

Write down the solution for this math problem: Solve 388 = -1215*g - 1604 - 7245 - 1698 for g.
answer: -9

Write down the solution for this math problem: Solve -8242*r + 10650*r - 161336 = 0 for r.
answer: 67

Write down the solution for this math problem: Solve 12*k + 520 = 768 - 404 for k.
answer:
-13