b-8+8b=21

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Solution for b-8+8b=21 equation:


Simplifying
b + -8 + 8b = 21

Reorder the terms:
-8 + b + 8b = 21

Combine like terms: b + 8b = 9b
-8 + 9b = 21

Solving
-8 + 9b = 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 + 9b = 21 + 8

Combine like terms: -8 + 8 = 0
0 + 9b = 21 + 8
9b = 21 + 8

Combine like terms: 21 + 8 = 29
9b = 29

Divide each side by '9'.
b = 3.222222222

Simplifying
b = 3.222222222

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