r+2-(4r-1/2r) - solution

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

r in (-oo:+oo)

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

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

2-5/2*r = 0 // - 2

-5/2*r = -2 // : -5/2

r = -2/(-5/2)

r = 4/5

r = 4/5

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