a/4+9=13

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Solution for a/4+9=13 equation: 


a in (-oo:+oo)

a/4+9 = 13 // - 13

a/4-13+9 = 0

1/4*a-4 = 0 // + 4

1/4*a = 4 // : 1/4

a = 4/1/4

a = 16

a = 16

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