3x+2(18)=72

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Solution for 3x+2(18)=72 equation: 


Simplifying
3x + 2(18) = 72

Multiply 2 * 18
3x + 36 = 72

Reorder the terms:
36 + 3x = 72

Solving
36 + 3x = 72

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + 3x = 72 + -36

Combine like terms: 36 + -36 = 0
0 + 3x = 72 + -36
3x = 72 + -36

Combine like terms: 72 + -36 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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