3+2b=9

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Solution for 3+2b=9 equation: 


Simplifying
3 + 2b = 9

Solving
3 + 2b = 9

Solving for variable 'b'.

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

Add '-3' to each side of the equation.
3 + -3 + 2b = 9 + -3

Combine like terms: 3 + -3 = 0
0 + 2b = 9 + -3
2b = 9 + -3

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

Divide each side by '2'.
b = 3

Simplifying
b = 3

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