Question:
Solve -43*t - 5*t + 1 = -47 for t..

Answer:
1

Question:
Solve 0 = 13*a + 9 + 4 for a..

Answer:
-1

Question:
Solve -1564*y + 1557*y = -14 for y..

Answer:
2

Question:
Solve 0 = -2712*u + 3701*u + 20769 for u..

Answer:
-21