3(x+9)=129

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Solution for 3(x+9)=129 equation: 


Simplifying
3(x + 9) = 129

Reorder the terms:
3(9 + x) = 129
(9 * 3 + x * 3) = 129
(27 + 3x) = 129

Solving
27 + 3x = 129

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + 3x = 129 + -27

Combine like terms: 27 + -27 = 0
0 + 3x = 129 + -27
3x = 129 + -27

Combine like terms: 129 + -27 = 102
3x = 102

Divide each side by '3'.
x = 34

Simplifying
x = 34

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