1=5a+a+7

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Solution for 1=5a+a+7 equation: 


a in (-oo:+oo)

1 = 5*a+a+7 // - 5*a+a+7

1-(5*a)-a-7 = 0

1-5*a-a-7 = 0

-6*a-6 = 0 // + 6

-6*a = 6 // : -6

a = 6/(-6)

a = -1

a = -1

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