question: Teacher asked me this: Solve 270 - 7262 = 189*t + 115*t for t.
++++++++++
answer: -23

question: Teacher asked me this: Solve -r + 3441 - 3426 = 0 for r.
++++++++++
answer: 15

question: Teacher asked me this: Solve -11*r + 211 = 200 for r.
++++++++++
answer: 1

question: Teacher asked me this: Solve 7*f = -13 + 62 for f.
++++++++++
answer:
7