20+X=80-2*X

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Solution for 20+X=80-2*X equation:


Simplifying
20 + X = 80 + -2X

Solving
20 + X = 80 + -2X

Solving for variable 'X'.

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

Add '2X' to each side of the equation.
20 + X + 2X = 80 + -2X + 2X

Combine like terms: X + 2X = 3X
20 + 3X = 80 + -2X + 2X

Combine like terms: -2X + 2X = 0
20 + 3X = 80 + 0
20 + 3X = 80

Add '-20' to each side of the equation.
20 + -20 + 3X = 80 + -20

Combine like terms: 20 + -20 = 0
0 + 3X = 80 + -20
3X = 80 + -20

Combine like terms: 80 + -20 = 60
3X = 60

Divide each side by '3'.
X = 20

Simplifying
X = 20

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