8b-21=6b+6

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Solution for 8b-21=6b+6 equation:


Simplifying
8b + -21 = 6b + 6

Reorder the terms:
-21 + 8b = 6b + 6

Reorder the terms:
-21 + 8b = 6 + 6b

Solving
-21 + 8b = 6 + 6b

Solving for variable 'b'.

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

Add '-6b' to each side of the equation.
-21 + 8b + -6b = 6 + 6b + -6b

Combine like terms: 8b + -6b = 2b
-21 + 2b = 6 + 6b + -6b

Combine like terms: 6b + -6b = 0
-21 + 2b = 6 + 0
-21 + 2b = 6

Add '21' to each side of the equation.
-21 + 21 + 2b = 6 + 21

Combine like terms: -21 + 21 = 0
0 + 2b = 6 + 21
2b = 6 + 21

Combine like terms: 6 + 21 = 27
2b = 27

Divide each side by '2'.
b = 13.5

Simplifying
b = 13.5

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