Question:
Solve -8*s - 216 + 248 = 0 for s..

Answer:
4

Question:
Solve 45*j + 52*j = 75*j - 22 for j..

Answer:
-1

Question:
Solve -27*r + 81 + 54 = 0 for r..

Answer:
5

Question:
Solve 73*w - 126 = -52*w + 116*w for w..

Answer:
14