question: Teacher asked me this: Solve 45*x - 78 = -303 for x.
++++++++++
answer: -5

question: Teacher asked me this: Solve -17*d - 99 = -6*d + 33 for d.
++++++++++
answer: -12

question: Teacher asked me this: Solve -43141*u + 42385 = -41930*u for u.
++++++++++
answer: 35

question: Teacher asked me this: Solve -58*z + 62*z = 16 for z.
++++++++++
answer:
4