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OpenStudy (anonymous):
7-4x+2(5x+8) if x=-2
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OpenStudy (anonymous):
7-4(-2)+2(5(-2)+8)=
OpenStudy (candyme):
sub in -2 everywhere there is an x 7-4(-2)+2(-10+8) 7+8+2(-2) 15-4 11
OpenStudy (anonymous):
7-4x+2(5x+8) plug x=-2 7-4(-2)+2(5(-2)+8) 7+8+2(-10+8) 7+8+2(-2) 7+8-4 11
OpenStudy (anonymous):
Parenthesis go first
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