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Norma-Jean [14]
4 years ago
9

Please help me with this #12

Mathematics
1 answer:
gizmo_the_mogwai [7]4 years ago
6 0
You can factor 4y - 12 into 4(y-3). Therefore, the equation becomes (y-3)^2 = 4(y-3). From this, you can take out a (y-3) from both sides so you are left with (y-3) = 4, Add 3 to both sides to solve that y = 7. 
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Hey there!

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~Amphitrite1040:)

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