Write down the solution for this math problem: Solve -256 - 340 = 49*d + 139 for d.
answer: -15

Write down the solution for this math problem: Solve -226*a + 1995 = -93*a for a.
answer: 15

Write down the solution for this math problem: Solve 276*w + 8534 + 70502 = -901*w + 8416 for w.
answer: -60

Write down the solution for this math problem: Solve 363 + 1398 = -158*v - 11827 for v.
answer:
-86