a/2+8=13 - solution

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Solution for a/2+8=13 equation:

a in (-oo:+oo)

a/2+8 = 13 // - 13

a/2-13+8 = 0

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

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

a = 5/1/2

a = 10

a = 10

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