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Q: 4x plus y equals 9 7x - 8y equals 6?

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8y-7x

4x + y = 9 so that y = 9 - 4x 7x - 8y = 6 7x - 8*(9-4x) = 6 7x - 72 + 32x = 6 39x = 78 x = 2 Then y = 9 - 4x = 9-4*2 = 9-8 = 1

4x+8y=-24

Y- intercept of 4x+8y=16

134

16

(0,2)

There is no equation on the list you're showing that has the same graph as [ 4x + 8y = 12 ].

9x plus 8y

Solve for Y algebraically. 4X + 8Y = 16 8Y = - 4X + 16 Y = - 1/2X + 2 graph and see that the Y intercept = 2

(5,3)

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