9x+3(3x)=72

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Solution for 9x+3(3x)=72 equation: 


Simplifying
9x + 3(3x) = 72

Remove parenthesis around (3x)
9x + 3 * 3x = 72

Multiply 3 * 3
9x + 9x = 72

Combine like terms: 9x + 9x = 18x
18x = 72

Solving
18x = 72

Solving for variable 'x'.

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

Divide each side by '18'.
x = 4

Simplifying
x = 4

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