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8x plus 4y equals 5 is 8x + 4y = 5.
8x+4y=20 4y=-8x+20 y=-2x+5 f(x)=-2x+5
-8x + 4y = 28 Add 8x to each side: 4y = 8x + 28 Divide both sides by 4: y = 2x + 7
6x+14y+8x-18y = 14x-4y
4y - 8x + 12 = 0 4y = 8x - 12 y = 2x - 3 So the slope = 2 y-intercept = -3