a/5+7=12 - solution

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Solution for a/5+7=12 equation:

a in (-oo:+oo)

a/5+7 = 12 // - 12

a/5-12+7 = 0

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

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

a = 5/1/5

a = 25

a = 25

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