1+6a+3a=28 - solution

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Solution for 1+6a+3a=28 equation:

a in (-oo:+oo)

6*a+3*a+1 = 28 // - 28

6*a+3*a-28+1 = 0

9*a-27 = 0 // + 27

9*a = 27 // : 9

a = 27/9

a = 3

a = 3

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