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X plus XY equals 8 solve for Y?
x+xy=8 xy=-x+8 y=-1+8/x
What is 2 over X plus 1 over Y simplified they are fractions?
I understand you want [(2/x) + (1/y)] as a single fraction. The common denominator is (xy): 2/x = (2y)/(xy); and 1/y = x/(xy), so the answer is (2y + x) / (xy)
If x equals -8 and xy equals 1 what does y equal?
So far you know that: x=-8 xy=1 so xy means x times y. If you split xy. y=1/x or y=1/-8 1/-8= -0.125 You can find out that this is correct with the formula xy=1 because -0.125 x -8 is 1.
Factor 2 plus 2y plus x plus xy?
2+2y+x+xy=(x+2)(y+1)
What is x squared-xy-20ysquared equal?
This equation does not equal a number, but it can be factorised. x2-xy-20y2=(x-5y)(x+4y)
