2/7X=-1

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Solution for 2/7X=-1 equation: 


X in (-oo:+oo)

(2/7)*X = -1 // + 1

(2/7)*X+1 = 0

2/7*X+1 = 0 // - 1

2/7*X = -1 // : 2/7

X = -1/2/7

X = -7/2

X = -7/2

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