1/2(r+1)=2/7(-r+3)-5

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Solution for 1/2(r+1)=2/7(-r+3)-5 equation: 


r in (-oo:+oo)

(1/2)*(r+1) = (2/7)*(3-r)-5 // - (2/7)*(3-r)-5

(1/2)*(r+1)-((2/7)*(3-r))+5 = 0

(1/2)*(r+1)+(-2/7)*(3-r)+5 = 0

1/2*(r+1)-2/7*(3-r)+5 = 0

1/2*(r+1)-2/7*(3-r)+5 = 0

11/14*r-5/14+5 = 0

11/14*r+65/14 = 0

11/14*r+65/14 = 0

11/14*r+65/14 = 0 // - 65/14

11/14*r = -65/14 // : 11/14

r = -65/14/11/14

r = -65/11

r = -65/11

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