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Y = 1.125

2Y + 6Y - 9 = 0

2Y + 6Y = 9

Y(2+6) = 9

8Y = 9

Y = 9/8 = 1 1/8 = 1.125

PROOF:

2(1.125) + 6(1.125) - 9 = 0

2.5 + 7.5 - 9 = 0

9 - 9 = 0

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15y ago

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