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OpenStudy (anonymous):
Given: x + y = 10. If x = -21, what is y?
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OpenStudy (blurbendy):
if you substitute x = -21, you end up with -21 + y = 10 Add 21 to both sides
OpenStudy (anonymous):
y=31?
OpenStudy (blurbendy):
yes, sir
OpenStudy (anonymous):
Yep!
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