X-21=2x+87

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Solution for X-21=2x+87 equation: 


Simplifying
X + -21 = 2x + 87

Reorder the terms:
-21 + X = 2x + 87

Reorder the terms:
-21 + X = 87 + 2x

Solving
-21 + X = 87 + 2x

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 + 21 + X = 87 + 21 + 2x

Combine like terms: -21 + 21 = 0
0 + X = 87 + 21 + 2x
X = 87 + 21 + 2x

Combine like terms: 87 + 21 = 108
X = 108 + 2x

Simplifying
X = 108 + 2x

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