question: Teacher asked me this: Solve 19*q - 217 = -53 + 45 for q.
++++++++++
answer: 11

question: Teacher asked me this: Solve -46 + 47 = 32*s - 447 for s.
++++++++++
answer: 14

question: Teacher asked me this: Solve 68*t + 507 - 1154 = 1121 for t.
++++++++++
answer: 26

question: Teacher asked me this: Solve 28 + 117 = 13419*r - 13390*r for r.
++++++++++
answer:
5