b+9+6b=30

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Solution for b+9+6b=30 equation: 


Simplifying
b + 9 + 6b = 30

Reorder the terms:
9 + b + 6b = 30

Combine like terms: b + 6b = 7b
9 + 7b = 30

Solving
9 + 7b = 30

Solving for variable 'b'.

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

Add '-9' to each side of the equation.
9 + -9 + 7b = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 7b = 30 + -9
7b = 30 + -9

Combine like terms: 30 + -9 = 21
7b = 21

Divide each side by '7'.
b = 3

Simplifying
b = 3

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