X+x+21=27

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Solution for X+x+21=27 equation:


Simplifying
X + x + 21 = 27

Reorder the terms:
21 + X + x = 27

Solving
21 + X + x = 27

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + X + -21 + x = 27 + -21

Reorder the terms:
21 + -21 + X + x = 27 + -21

Combine like terms: 21 + -21 = 0
0 + X + x = 27 + -21
X + x = 27 + -21

Combine like terms: 27 + -21 = 6
X + x = 6

Add '-1x' to each side of the equation.
X + x + -1x = 6 + -1x

Combine like terms: x + -1x = 0
X + 0 = 6 + -1x
X = 6 + -1x

Simplifying
X = 6 + -1x

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