Question:
Solve -71*r + 7815 = -35*r - 218*r - 339*r for r..

Answer:
-15

Question:
Solve -707252 = 15870*m - 3676*m for m..

Answer:
-58

Question:
Solve -15346*j - 493428 = -307*j + 3939*j for j..

Answer:
-26

Question:
Solve 0 = 41*k + 800936 - 799583 for k..

Answer:
-33