Question:
Solve -y = -27 + 30 for y..

Answer:
-3

Question:
Solve -2553*m - 1219*m = 244460 + 121424 for m..

Answer:
-97

Question:
Solve 13*j + 138 = -10*j for j..

Answer:
-6

Question:
Solve -4*h - 13 = 7 for h..

Answer:
-5