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Mathematics 22 Online
OpenStudy (anonymous):

-9x+18=-72

OpenStudy (anonymous):

We subtract 18 from both sides and get- -9x+18=-72 -18 -18 ------------- This leaves us with -9x=-90 Now all we have to do is to isolate x, and that means we got to divide both sides by -9. -9x/-9=-90/-9. This leaves us with x=10

OpenStudy (anonymous):

Hope it helps :D

OpenStudy (anonymous):

can u help with this a+7=20 ______ -8.4

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