21+X=37

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Solution for 21+X=37 equation: 


Simplifying
21 + X = 37

Solving
21 + X = 37

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 = 37 + -21

Combine like terms: 21 + -21 = 0
0 + X = 37 + -21
X = 37 + -21

Combine like terms: 37 + -21 = 16
X = 16

Simplifying
X = 16

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