Question:
Solve -639*j + 317*j = -320*j - 18 for j..

Answer:
9

Question:
Solve -8*p + 50 + 49 = 19 for p..

Answer:
10

Question:
Solve -3499*k + 314 + 2213 + 304 = -668*k for k..

Answer:
1

Question:
Solve 5772 = 565*d + 5752 + 20360 for d..

Answer:
-36