2/5r-9=-19

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Solution for 2/5r-9=-19 equation: 


r in (-oo:+oo)

(2/5)*r-9 = -19 // + 19

(2/5)*r-9+19 = 0

2/5*r+10 = 0 // - 10

2/5*r = -10 // : 2/5

r = -10/2/5

r = -25

r = -25

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