(1/5)a-4+9=7

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Solution for (1/5)a-4+9=7 equation: 


a in (-oo:+oo)

(1/5)*a-4+9 = 7 // - 7

(1/5)*a-7-4+9 = 0

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

1/5*a = 2 // : 1/5

a = 2/1/5

a = 10

a = 10

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