21-X+2=16

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Solution for 21-X+2=16 equation:


Simplifying
21 + -1X + 2 = 16

Reorder the terms:
21 + 2 + -1X = 16

Combine like terms: 21 + 2 = 23
23 + -1X = 16

Solving
23 + -1X = 16

Solving for variable 'X'.

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

Add '-23' to each side of the equation.
23 + -23 + -1X = 16 + -23

Combine like terms: 23 + -23 = 0
0 + -1X = 16 + -23
-1X = 16 + -23

Combine like terms: 16 + -23 = -7
-1X = -7

Divide each side by '-1'.
X = 7

Simplifying
X = 7

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