If that's y times 4, the answer is 4y
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given: x - 4 = -y or, -y = x - 4 or, y = -(x - 4) or y = -x + 4 or y = 4 - x i.e. for x > 4, the equation x - 4 = -y is true.
Evaluate x/y when x = 4 and y = 4. x/y = 4/4 = 1/1 = 1
y = x + 2 y = -x + 4 x + 2 = -x + 4 2x + 2 = 4 2x = 2 x = 1 y = x + 2 y = 1 + 2 y = 3 (1, 3)
x=x-4/y 0=-4/y 0=-4 This equation is not well put together. I may have interpreted it wrong. This may be your equation and you didn't state that x-4 is a quantity x=(x-4)/y x-4=xy y=1-4/x y=-4x-1 + 1 This is slope intercept form. Your slope is -4/1 and your y-intercept is +1
x=4+y 4x+y=1 = 4(4+y)+y=1 16+4y+y=1 16+5y=1 5y=-15 y=-3 x=4+y = x=4+(-3) x=1