b+9=12.2

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Solution for b+9=12.2 equation: 


Simplifying
b + 9 = 12.2

Reorder the terms:
9 + b = 12.2

Solving
9 + b = 12.2

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 + b = 12.2 + -9

Combine like terms: 9 + -9 = 0
0 + b = 12.2 + -9
b = 12.2 + -9

Combine like terms: 12.2 + -9 = 3.2
b = 3.2

Simplifying
b = 3.2

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