4x-20x/8=9y

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Solution for 4x-20x/8=9y equation: 


x in (-oo:+oo)

4*x-((20*x)/8) = 9*y // - 9*y

4*x-((20*x)/8)-(9*y) = 0

4*x+(-5/2)*x-9*y = 0

3/2*x-9*y = 0 // + -9*y

3/2*x = -(-9*y) // : 3/2

x = (-(-9*y))/3/2

x = 6*y

x = 6*y

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