2b+9=20

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Solution for 2b+9=20 equation: 


Simplifying
2b + 9 = 20

Reorder the terms:
9 + 2b = 20

Solving
9 + 2b = 20

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 + 2b = 20 + -9

Combine like terms: 9 + -9 = 0
0 + 2b = 20 + -9
2b = 20 + -9

Combine like terms: 20 + -9 = 11
2b = 11

Divide each side by '2'.
b = 5.5

Simplifying
b = 5.5

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