3x+3(2x+10)=129

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Solution for 3x+3(2x+10)=129 equation:


Simplifying
3x + 3(2x + 10) = 129

Reorder the terms:
3x + 3(10 + 2x) = 129
3x + (10 * 3 + 2x * 3) = 129
3x + (30 + 6x) = 129

Reorder the terms:
30 + 3x + 6x = 129

Combine like terms: 3x + 6x = 9x
30 + 9x = 129

Solving
30 + 9x = 129

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 9x = 129 + -30

Combine like terms: 30 + -30 = 0
0 + 9x = 129 + -30
9x = 129 + -30

Combine like terms: 129 + -30 = 99
9x = 99

Divide each side by '9'.
x = 11

Simplifying
x = 11

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