2/5a-4=2

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Solution for 2/5a-4=2 equation: 


a in (-oo:+oo)

(2/5)*a-4 = 2 // - 2

(2/5)*a-4-2 = 0

2/5*a-6 = 0 // + 6

2/5*a = 6 // : 2/5

a = 6/2/5

a = 15

a = 15

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