Question:
Solve 0 = -86*n + 79*n + 7 for n..

Answer:
1

Question:
Solve 8*t + 44 = 4 for t..

Answer:
-5

Question:
Solve -165*x + 573 = -582 for x..

Answer:
7

Question:
Solve 14 = -7*v - 21 for v..

Answer:
-5