b-10=21

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Solution for b-10=21 equation: 


Simplifying
b + -10 = 21

Reorder the terms:
-10 + b = 21

Solving
-10 + b = 21

Solving for variable 'b'.

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

Add '10' to each side of the equation.
-10 + 10 + b = 21 + 10

Combine like terms: -10 + 10 = 0
0 + b = 21 + 10
b = 21 + 10

Combine like terms: 21 + 10 = 31
b = 31

Simplifying
b = 31

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