7a+1=57

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Solution for 7a+1=57 equation: 


a in (-oo:+oo)

7*a+1 = 57 // - 57

7*a-57+1 = 0

7*a-56 = 0 // + 56

7*a = 56 // : 7

a = 56/7

a = 8

a = 8

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