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How do I find y on 13?
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1 vote
How do I find y on 13?

How do I find y on 13?-example-1
User Jespern
by
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1 Answer

1 vote
9y - 77 = 12x - 28

therefore you first need to find x:
7x + 12 = 12x - 28
-5x = -40
x = 8

then you use x = 8
9y - 77 = 12×8 - 28
9y = 96 - 28 + 77
9y = 145
y = 16.11
User Hvwaldow
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5.4k points
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