b-9+2b=6

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Solution for b-9+2b=6 equation: 


Simplifying
b + -9 + 2b = 6

Reorder the terms:
-9 + b + 2b = 6

Combine like terms: b + 2b = 3b
-9 + 3b = 6

Solving
-9 + 3b = 6

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 + 3b = 6 + 9

Combine like terms: -9 + 9 = 0
0 + 3b = 6 + 9
3b = 6 + 9

Combine like terms: 6 + 9 = 15
3b = 15

Divide each side by '3'.
b = 5

Simplifying
b = 5

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