(19+x)+x=20

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Solution for (19+x)+x=20 equation:


Simplifying
(19 + x) + x = 20

Remove parenthesis around (19 + x)
19 + x + x = 20

Combine like terms: x + x = 2x
19 + 2x = 20

Solving
19 + 2x = 20

Solving for variable 'x'.

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

Add '-19' to each side of the equation.
19 + -19 + 2x = 20 + -19

Combine like terms: 19 + -19 = 0
0 + 2x = 20 + -19
2x = 20 + -19

Combine like terms: 20 + -19 = 1
2x = 1

Divide each side by '2'.
x = 0.5

Simplifying
x = 0.5

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