3=-1/7x

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Solution for 3=-1/7x equation: 


x in (-oo:+oo)

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

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

(1/7)*x+3 = 0

1/7*x+3 = 0 // - 3

1/7*x = -3 // : 1/7

x = -3/1/7

x = -21

x = -21

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