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I need help with this problem

I need help with this problem-example-1

1 Answer

4 votes
y=missing side:
p=16x+12
p=2(3x+8)+2y

16x+12=2(3x+8)+2y

Divide everything by 2:
8x+6=3x+8+y

-3x from each side:
5x+6=8+y

-8 from each side:
5x-2=y

y=5x-2

Hope this helps :)
User Aroldo
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