r/2+r/5+1=r/2+3

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Solution for r/2+r/5+1=r/2+3 equation: 


r in (-oo:+oo)

r/2+r/5+1 = r/2+3 // - r/2+3

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

1/5*r-2 = 0 // + 2

1/5*r = 2 // : 1/5

r = 2/1/5

r = 10

r = 10

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