5+5a=20

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Solution for 5+5a=20 equation: 


a in (-oo:+oo)

5*a+5 = 20 // - 20

5*a-20+5 = 0

5*a-15 = 0 // + 15

5*a = 15 // : 5

a = 15/5

a = 3

a = 3

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