Question:
Solve -10*w = -15*w + 12*w for w..

Answer:
0

Question:
Solve 97*i + 823*i + 21160 = 0 for i..

Answer:
-23

Question:
Solve -97*x - 172*x - 1815 - 4372 = 0 for x..

Answer:
-23

Question:
Solve 63*s - 2795 = 10*s + 279 for s..

Answer:
58