7a-7=49

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Solution for 7a-7=49 equation: 


a in (-oo:+oo)

7*a-7 = 49 // - 49

7*a-49-7 = 0

7*a-56 = 0 // + 56

7*a = 56 // : 7

a = 56/7

a = 8

a = 8

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