b+21=11

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Solution for b+21=11 equation: 


Simplifying
b + 21 = 11

Reorder the terms:
21 + b = 11

Solving
21 + b = 11

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + b = 11 + -21

Combine like terms: 21 + -21 = 0
0 + b = 11 + -21
b = 11 + -21

Combine like terms: 11 + -21 = -10
b = -10

Simplifying
b = -10

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