7-u/2=1

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Solution for 7-u/2=1 equation: 


u in (-oo:+oo)

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

7-(u/2)-1 = 0

6-1/2*u = 0 // - 6

-1/2*u = -6 // : -1/2

u = -6/(-1/2)

u = 12

u = 12

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