Question:
Solve -709*r = 8226 - 427 for r..

Answer:
-11

Question:
Solve -8220*j + 5030*j = 6848*j - 311965 - 320429 for j..

Answer:
63

Question:
Solve 1170 = 7*h + 1135 for h..

Answer:
5

Question:
Solve -1049*y = -2164*y + 1085*y - 390 for y..

Answer:
-13