3=-2r-1/2(6r+4)

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Solution for 3=-2r-1/2(6r+4) equation: 


r in (-oo:+oo)

3 = -((1/2)*(6*r+4))-2*r // + -((1/2)*(6*r+4))-2*r

(1/2)*(6*r+4)-(-2*r)+3 = 0

(1/2)*(6*r+4)+2*r+3 = 0

1/2*(6*r+4)+2*r+3 = 0

1/2*(6*r+4)+2*r+3 = 0

5*r+2+3 = 0

5*r+5 = 0

5*r+5 = 0

5*r+5 = 0 // - 5

5*r = -5 // : 5

r = -5/5

r = -1

r = -1

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