question: Teacher asked me this: Solve -38 = -17*f + 30 for f.
++++++++++
answer: 4

question: Teacher asked me this: Solve -43 = 19*l + 109 for l.
++++++++++
answer: -8

question: Teacher asked me this: Solve 123*h = 278*h - 148*h - 161 for h.
++++++++++
answer: 23

question: Teacher asked me this: Solve -191*t = -237*t - 644 for t.
++++++++++
answer:
-14