X+x-21=47

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Solution for X+x-21=47 equation:


Simplifying
X + x + -21 = 47

Reorder the terms:
-21 + X + x = 47

Solving
-21 + X + x = 47

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 = 47 + 21

Reorder the terms:
-21 + 21 + X + x = 47 + 21

Combine like terms: -21 + 21 = 0
0 + X + x = 47 + 21
X + x = 47 + 21

Combine like terms: 47 + 21 = 68
X + x = 68

Add '-1x' to each side of the equation.
X + x + -1x = 68 + -1x

Combine like terms: x + -1x = 0
X + 0 = 68 + -1x
X = 68 + -1x

Simplifying
X = 68 + -1x

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