X/4+4x/5=42

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Solution for X/4+4x/5=42 equation: 


x in (-oo:+oo)

X/4+(4*x)/5 = 42 // - 42

X/4+(4*x)/5-42 = 0

1/4*X+4/5*x-42 = 0 // - 1/4*X-42

4/5*x = -(1/4*X-42) // : 4/5

x = (-(1/4*X-42))/4/5

x = 5/4*(42-(1/4*X))

x = 5/4*(42-(1/4*X))

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