x+12+x=40

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Solution for x+12+x=40 equation: 


Simplifying
x + 12 + x = 40

Reorder the terms:
12 + x + x = 40

Combine like terms: x + x = 2x
12 + 2x = 40

Solving
12 + 2x = 40

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 2x = 40 + -12

Combine like terms: 12 + -12 = 0
0 + 2x = 40 + -12
2x = 40 + -12

Combine like terms: 40 + -12 = 28
2x = 28

Divide each side by '2'.
x = 14

Simplifying
x = 14

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