If x equals 10 and y equals 10,
then 9x plus 8y equals 170.
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9x + 8y = (9 x 6) + (8 x 3) = 54 + 24 = 78
9x+27 = -81 9x = -81-27 9x = -108 x = -12
x + 20 + 10x = 20 + 9x 11x + 20 = 20 + 9x Subtract 20 from both sides: 11x = 9x Subtract 9x from both sides: 2x = 0 Divide both sides by 2: x = 0
6x - 3y
-9x+6y = 54 6y = 9x+54 y = 1.5x+9 slope = 1.5