20+X+X=68

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Solution for 20+X+X=68 equation: 


Simplifying
20 + X + X = 68

Combine like terms: X + X = 2X
20 + 2X = 68

Solving
20 + 2X = 68

Solving for variable 'X'.

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

Add '-20' to each side of the equation.
20 + -20 + 2X = 68 + -20

Combine like terms: 20 + -20 = 0
0 + 2X = 68 + -20
2X = 68 + -20

Combine like terms: 68 + -20 = 48
2X = 48

Divide each side by '2'.
X = 24

Simplifying
X = 24

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