-17/10(r+10)-1/5(2r-85)=2

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Solution for -17/10(r+10)-1/5(2r-85)=2 equation: 


r in (-oo:+oo)

(-17/10)*(r+10)-((1/5)*(2*r-85)) = 2 // - 2

(-17/10)*(r+10)-((1/5)*(2*r-85))-2 = 0

(-17/10)*(r+10)+(-1/5)*(2*r-85)-2 = 0

-17/10*(r+10)-1/5*(2*r-85)-2 = 0

-17/10*(r+10)-1/5*(2*r-85)-2 = 0

-21/10*r-2 = 0

-21/10*r-2 = 0

-21/10*r-2 = 0 // + 2

-21/10*r = 2 // : -21/10

r = 2/(-21/10)

r = -20/21

r = -20/21

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