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OpenStudy (anonymous):
Expand the expression and combine the like terms: -(-4-a)-4(-4a-7)
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OpenStudy (anonymous):
release brackets first
OpenStudy (anonymous):
4+a-(-16a-28)=4+a+16a+28=17a+32
Nnesha (nnesha):
first you have to distribute brackets first one by -1 and second one by -4
OpenStudy (anonymous):
I have the answer now.
Nnesha (nnesha):
|dw:1418748868394:dw| its time to have explanation :) -4 times -1 -1 times -a
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