donuts90 donuts90
  • 24-01-2019
  • Mathematics
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7 (3a-2b) + 5b-3 (4a+2)

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poopkid12345 poopkid12345
  • 24-01-2019

Answer: 9a-9b-6


7(3a−2b)+5b−3(4a+2)


Distribute:

7(3a−2b)+5b−3(4a+2)


=(7)(3a)+(7)(−2b)+5b+(−3)(4a)+(−3)(2)


=21a+−14b+5b+−12a+−6


Combine Like Terms:


=21a+−14b+5b+−12a+−6


=(21a+−12a)+(−14b+5b)+(−6)


=9a+−9b+−6



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