6+7a=13 - solution

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Solution for 6+7a=13 equation:

a in (-oo:+oo)

7*a+6 = 13 // - 13

7*a-13+6 = 0

7*a-7 = 0 // + 7

7*a = 7 // : 7

a = 7/7

a = 1

a = 1

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