Question:
Solve -1268 + 1253 - 1275 = -575*q + 1585 for q..

Answer:
5

Question:
Solve 7*r + 420 = 10*r + 25*r for r..

Answer:
15

Question:
Solve -351*w + 43 = -308*w for w..

Answer:
1

Question:
Solve -4*l = 155 - 399 + 144 for l..

Answer:
25