Traviswhartsock
Traviswhartsock Traviswhartsock
  • 04-09-2019
  • Mathematics
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whats 15-b=4b-5(5-3)

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Аноним Аноним
  • 04-09-2019

15-b=4b-5(5-3)

Multiply the bracket by -5

(-5)(5)=-25

(-5)(-3)=15

15-b=4b-25+15

15-b=4b-10

Move 15 to the other side

Sign changes from +15 to -15

15-15-b=4b-10-15

-b=4b-25

Move 4b to the other side.

-b-4b=4b-4b-25

-b-4b=-25

-5b=-25

divide both sides by -5

-5b/-5=-25/-5

Answer: b=5

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