radomes.openskiesproject.org
kays37 kays37
  • 31-07-2016
  • Mathematics
Answered

what is the simplified form of each expression?


1) 1/3(21m+27)


2) 3/4(-28m+20)


3) (4-c)(-1)


4) (2-9c)(-8)

Verified Answer :

RainbowSherbert
RainbowSherbert RainbowSherbert
  • 31-07-2016

1) 7m+9
2)-21m+15
3)-4+c
4)-16+72c

Answer Link
dalendrk
dalendrk dalendrk
  • 31-07-2016

\(1)\\\dfrac{1}{3}(21m+27)=\dfrac{21}{3}m+\dfrac{27}{3}=7m+9\\\\2)\\\dfrac{3}{4}(-28m+20)=-\dfrac{3\cdot28}{4}m+\dfrac{3\cdot20}{4}=-3\cdot7m+3\cdot5=-21m+15\\\\3)\\(4-c)(-1)=4(-1)-c(-1)=-4+c=c-4\\\\4)\\(2-9c)((-8)=2(-8)-9c(-8)=-16+72c=72c-16\)

Answer Link

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