x+21=16

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Solution for x+21=16 equation: 


Simplifying
x + 21 = 16

Reorder the terms:
21 + x = 16

Solving
21 + x = 16

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 = 16 + -21

Combine like terms: 21 + -21 = 0
0 + x = 16 + -21
x = 16 + -21

Combine like terms: 16 + -21 = -5
x = -5

Simplifying
x = -5

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