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

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


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

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

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

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

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

Solving
3 + X + 3x = 21 + 2x

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + X + -3 + 3x = 21 + -3 + 2x

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

Combine like terms: 3 + -3 = 0
0 + X + 3x = 21 + -3 + 2x
X + 3x = 21 + -3 + 2x

Combine like terms: 21 + -3 = 18
X + 3x = 18 + 2x

Add '-3x' to each side of the equation.
X + 3x + -3x = 18 + 2x + -3x

Combine like terms: 3x + -3x = 0
X + 0 = 18 + 2x + -3x
X = 18 + 2x + -3x

Combine like terms: 2x + -3x = -1x
X = 18 + -1x

Simplifying
X = 18 + -1x

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