x+x+2=20

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Solution for x+x+2=20 equation: 


Simplifying
x + x + 2 = 20

Reorder the terms:
2 + x + x = 20

Combine like terms: x + x = 2x
2 + 2x = 20

Solving
2 + 2x = 20

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 2x = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 2x = 20 + -2
2x = 20 + -2

Combine like terms: 20 + -2 = 18
2x = 18

Divide each side by '2'.
x = 9

Simplifying
x = 9

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