3[5+n]=9+9

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Solution for 3[5+n]=9+9 equation: 


Simplifying
3[5 + n] = 9 + 9
[5 * 3 + n * 3] = 9 + 9
[15 + 3n] = 9 + 9

Combine like terms: 9 + 9 = 18
15 + 3n = 18

Solving
15 + 3n = 18

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-15' to each side of the equation.
15 + -15 + 3n = 18 + -15

Combine like terms: 15 + -15 = 0
0 + 3n = 18 + -15
3n = 18 + -15

Combine like terms: 18 + -15 = 3
3n = 3

Divide each side by '3'.
n = 1

Simplifying
n = 1

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