(X+12)+X=220

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Solution for (X+12)+X=220 equation:


Simplifying
(X + 12) + X = 220

Reorder the terms:
(12 + X) + X = 220

Remove parenthesis around (12 + X)
12 + X + X = 220

Combine like terms: X + X = 2X
12 + 2X = 220

Solving
12 + 2X = 220

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 = 220 + -12

Combine like terms: 12 + -12 = 0
0 + 2X = 220 + -12
2X = 220 + -12

Combine like terms: 220 + -12 = 208
2X = 208

Divide each side by '2'.
X = 104

Simplifying
X = 104

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