Remove parentheses and simplify 7a+6b-4 (3a-3b)

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28-01-2015
Mathematics

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Remove parentheses and simplify 7a+6b-4 (3a-3b)

Sagot :

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Apologiabiologyidn Apologiabiologyidn · Answer 1 · 2015-01-28T14:23:42-05:00

Apologiabiologyidn Apologiabiologyidn

28-01-2015

normally, you would do whatever is inside of the parenthesees first then do the rest but we cant get any further so we remove the parenthasees by distrubtion

7a+6b-4(3a-3b)
-4(3a-3b)
a(b+c)=(ab)+(ac)
-4(3a-3b)=-12a-(-12b)

7a+6b-12a+12b
7a-12a+6b+12b
-5a+18b
that's the asnwer

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