unigeek51 unigeek51

16-05-2017
Mathematics

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4. Simplify the expression. -3(b – 7)

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morgiegrace8 morgiegrace8

16-05-2017

i believe the answer is -3b+21

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16-05-2017

-3(b-7)
-3b+21=0
-3b=-21(minus will cancel minus)
b=21/3
b=7

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