20/21=x+2/3

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Solution for 20/21=x+2/3 equation:


x in (-oo:+oo)

20/21 = x+2/3 // - x+2/3

20/21-x-(2/3) = 0

20/21-x-2/3 = 0

2/7-x = 0 // - 2/7

-x = -2/7 // * -1

x = 2/7

x = 2/7

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