X+x-2+x-2+x+3=21

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Solution for X+x-2+x-2+x+3=21 equation: 


Simplifying
X + x + -2 + x + -2 + x + 3 = 21

Reorder the terms:
-2 + -2 + 3 + X + x + x + x = 21

Combine like terms: -2 + -2 = -4
-4 + 3 + X + x + x + x = 21

Combine like terms: -4 + 3 = -1
-1 + X + x + x + x = 21

Combine like terms: x + x = 2x
-1 + X + 2x + x = 21

Combine like terms: 2x + x = 3x
-1 + X + 3x = 21

Solving
-1 + X + 3x = 21

Solving for variable 'X'.

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

Add '1' to each side of the equation.
-1 + X + 1 + 3x = 21 + 1

Reorder the terms:
-1 + 1 + X + 3x = 21 + 1

Combine like terms: -1 + 1 = 0
0 + X + 3x = 21 + 1
X + 3x = 21 + 1

Combine like terms: 21 + 1 = 22
X + 3x = 22

Add '-3x' to each side of the equation.
X + 3x + -3x = 22 + -3x

Combine like terms: 3x + -3x = 0
X + 0 = 22 + -3x
X = 22 + -3x

Simplifying
X = 22 + -3x

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