b-13=8

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Solution for b-13=8 equation: 


Simplifying
b + -13 = 8

Reorder the terms:
-13 + b = 8

Solving
-13 + b = 8

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + b = 8 + 13

Combine like terms: -13 + 13 = 0
0 + b = 8 + 13
b = 8 + 13

Combine like terms: 8 + 13 = 21
b = 21

Simplifying
b = 21

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