QUESTION: Math problem: Solve f = -155 + 158 for f.
ANS: 3
QUESTION: Math problem: Solve -36*t - 359 - 90 = 19 for t.
ANS: -13
QUESTION: Math problem: Solve 0 = -u + 2*u + 5 for u.
ANS: -5
QUESTION: Math problem: Solve -285*j + 7546 + 1004 = 0 for j.
ANS:
30