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OpenStudy (anonymous):
the solution to the equation 2x + 3 = 3x + ? is x = -8. What is the number on the question mark?
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OpenStudy (solomonzelman):
plug in -8 for x, can you do that?
OpenStudy (smored):
so let's make ?=y. 2(8)+3=3(8)+y 16+3=24+y y=-5
OpenStudy (solomonzelman):
@smored, you are plugging -8, not 8.
OpenStudy (smored):
oops
OpenStudy (solomonzelman):
don't do his work please.
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OpenStudy (smored):
so -16+3=-24+y y=11
OpenStudy (smored):
sorry for my mistake
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