B-8=-21

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Solution for B-8=-21 equation: 


Simplifying
B + -8 = -21

Reorder the terms:
-8 + B = -21

Solving
-8 + B = -21

Solving for variable 'B'.

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

Add '8' to each side of the equation.
-8 + 8 + B = -21 + 8

Combine like terms: -8 + 8 = 0
0 + B = -21 + 8
B = -21 + 8

Combine like terms: -21 + 8 = -13
B = -13

Simplifying
B = -13

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