Question:
Solve -7*g + 27 = 13 for g..

Answer:
2

Question:
Solve 20*a - 38*a = -0*a + 162 for a..

Answer:
-9

Question:
Solve 277*j - 4213 = -106*j for j..

Answer:
11

Question:
Solve 0 = -23*k + 30*k for k..

Answer:
0