7a-3=18

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Solution for 7a-3=18 equation: 


a in (-oo:+oo)

7*a-3 = 18 // - 18

7*a-18-3 = 0

7*a-21 = 0 // + 21

7*a = 21 // : 7

a = 21/7

a = 3

a = 3

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