X+x-20=84

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Solution for X+x-20=84 equation:


Simplifying
X + x + -20 = 84

Reorder the terms:
-20 + X + x = 84

Solving
-20 + X + x = 84

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 + X + 20 + x = 84 + 20

Reorder the terms:
-20 + 20 + X + x = 84 + 20

Combine like terms: -20 + 20 = 0
0 + X + x = 84 + 20
X + x = 84 + 20

Combine like terms: 84 + 20 = 104
X + x = 104

Add '-1x' to each side of the equation.
X + x + -1x = 104 + -1x

Combine like terms: x + -1x = 0
X + 0 = 104 + -1x
X = 104 + -1x

Simplifying
X = 104 + -1x

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