Question:
Solve -835*l + 903*l + 2108 = 0 for l..

Answer:
-31

Question:
Solve -320 - 260 = -47*r - 0*r + 31 for r..

Answer:
13

Question:
Solve -162457 = 7640*z + 51463 for z..

Answer:
-28

Question:
Solve -131*g - 3162*g = -260147 for g..

Answer:
79