1+7a=-83

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Solution for 1+7a=-83 equation: 


a in (-oo:+oo)

7*a+1 = -83 // + 83

7*a+1+83 = 0

7*a+84 = 0 // - 84

7*a = -84 // : 7

a = -84/7

a = -12

a = -12

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