J/7-2=1

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Solution for J/7-2=1 equation: 


J in (-oo:+oo)

J/7-2 = 1 // - 1

J/7-2-1 = 0

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

1/7*J = 3 // : 1/7

J = 3/1/7

J = 21

J = 21

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