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4 years ago

5(y-4)=7(2y+1) find the y

Mathematics

1 answer:

lozanna [386]4 years ago

6 0

Hi Brainiac

Distribute

(5)(y)+(5)(-4)=(7)(2y)+(7)(1)

5y-20=14y+7

Now we need to subtract 14y from both sides

5y-20-14y=14y+7-14y

-9y-20=7

Now add 20

-9y-20+20=7+20

-9y=27

Divide both sides by -9 to both sides so we can find the value for y

-9y/-9= 27/-9

y= -3

I hope that's help:0

Good night

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