3x-2/7=-1 - solution

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Solution for 3x-2/7=-1 equation:

x in (-oo:+oo)

3*x-(2/7) = -1 // + 1

3*x-(2/7)+1 = 0

3*x-2/7+1 = 0

3*x+5/7 = 0 // - 5/7

3*x = -5/7 // : 3

x = -5/7/3

x = -5/21

x = -5/21

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