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9x + 8y = (9 x 6) + (8 x 3) = 54 + 24 = 78
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
Solve for Y algebraically. 4X + 8Y = 16 8Y = - 4X + 16 Y = - 1/2X + 2 graph and see that the Y intercept = 2
x = 8y, which cannot be simplified any further, unless solving for y, which would be y = x/8.
2x = -7 - 8y