-2/3-1/2u=-9/7

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Solution for -2/3-1/2u=-9/7 equation: 


u in (-oo:+oo)

-((1/2)*u)-2/3 = -9/7 // + -9/7

-((1/2)*u)-2/3-(-9/7) = 0

(-1/2)*u-2/3+9/7 = 0

13/21-1/2*u = 0 // - 13/21

-1/2*u = -13/21 // : -1/2

u = -13/21/(-1/2)

u = 26/21

u = 26/21

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