X/21-x/35=1/21

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Solution for X/21-x/35=1/21 equation: 


x in (-oo:+oo)

X/21-(x/35) = 1/21 // - 1/21

X/21-(x/35)-(1/21) = 0

X/21-(x/35)-1/21 = 0

1/21*X-1/35*x-1/21 = 0 // - 1/21*X-1/21

-1/35*x = -(1/21*X-1/21) // : -1/35

x = (-(1/21*X-1/21))/(-1/35)

x = -35*(1/21-(1/21*X))

x = -35*(1/21-(1/21*X))

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