x*(5/7)=-1

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Solution for x*(5/7)=-1 equation:


x in (-oo:+oo)

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

(5/7)*x+1 = 0

5/7*x+1 = 0 // - 1

5/7*x = -1 // : 5/7

x = -1/5/7

x = -7/5

x = -7/5

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