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OpenStudy (anonymous):
8x-(5x+7)=8 x=??
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OpenStudy (anonymous):
5
OpenStudy (anonymous):
how do you figure that out?
OpenStudy (anonymous):
let's check! we opened -(5x+7)=-5x-7 since then, 8x-5x-7=8 ---> 3x=8+7---> 3x=15, we get x=5
OpenStudy (anonymous):
aaahhhhhh i see. thank you :D
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