-5
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It's the equation of a straight line whose slope is -4, whose
x-intercept is -2.25, and whose y-intercept is -9 .
4x
2
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
(2, 1)
4x + 2(3x) = 30 10x = 30 x= 3. Y= 9. (3,9)