question: Teacher asked me this: Solve -1545*d = -571*d + 43830 for d.
++++++++++
answer: -45

question: Teacher asked me this: Solve -63*t = -67*t + 8 for t.
++++++++++
answer: 2

question: Teacher asked me this: Solve -2341*a - 37150 = 30739 for a.
++++++++++
answer: -29

question: Teacher asked me this: Solve -1136*r = -2366*r + 1119*r - 1665 for r.
++++++++++
answer:
-15