-2=1-x/7

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


x in (-oo:+oo)

-2 = 1-(x/7) // - 1-(x/7)

x/7-2-1 = 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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