5/7x+2/7=-1 - solution

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Solution for 5/7x+2/7=-1 equation:

x in (-oo:+oo)

(5/7)*x+2/7 = -1 // + 1

(5/7)*x+2/7+1 = 0

5/7*x+9/7 = 0 // - 9/7

5/7*x = -9/7 // : 5/7

x = -9/7/5/7

x = -9/5

x = -9/5

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