(3x+x)2=72

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Solution for (3x+x)2=72 equation: 


Simplifying
(3x + x) * 2 = 72

Combine like terms: 3x + x = 4x
(4x) * 2 = 72

Remove parenthesis around (4x)
4x * 2 = 72

Reorder the terms for easier multiplication:
4 * 2x = 72

Multiply 4 * 2
8x = 72

Solving
8x = 72

Solving for variable 'x'.

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

Divide each side by '8'.
x = 9

Simplifying
x = 9

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