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sammy [17]
3 years ago
12

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

Mathematics
1 answer:
lozanna [386]3 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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