3x+(3x+4)=72

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Solution for 3x+(3x+4)=72 equation:


Simplifying
3x + (3x + 4) = 72

Reorder the terms:
3x + (4 + 3x) = 72

Remove parenthesis around (4 + 3x)
3x + 4 + 3x = 72

Reorder the terms:
4 + 3x + 3x = 72

Combine like terms: 3x + 3x = 6x
4 + 6x = 72

Solving
4 + 6x = 72

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 6x = 72 + -4

Combine like terms: 4 + -4 = 0
0 + 6x = 72 + -4
6x = 72 + -4

Combine like terms: 72 + -4 = 68
6x = 68

Divide each side by '6'.
x = 11.33333333

Simplifying
x = 11.33333333

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