72=x+2x+3x

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


Simplifying
72 = x + 2x + 3x

Combine like terms: x + 2x = 3x
72 = 3x + 3x

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

Solving
72 = 6x

Solving for variable 'x'.

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

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

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

Add '-72' to each side of the equation.
72 + -72 + -6x = 0 + -72

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

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

Divide each side by '-6'.
x = 12

Simplifying
x = 12

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