7(3n+9)=147

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Solution for 7(3n+9)=147 equation: 


n in (-oo:+oo)

7*(3*n+9) = 147 // - 147

7*(3*n+9)-147 = 0

7*(3*n+9)-147 = 0

21*n-84 = 0

21*n-84 = 0

21*n-84 = 0 // + 84

21*n = 84 // : 21

n = 84/21

n = 4

n = 4

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