9b+4=12

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Solution for 9b+4=12 equation: 


Simplifying
9b + 4 = 12

Reorder the terms:
4 + 9b = 12

Solving
4 + 9b = 12

Solving for variable 'b'.

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

Add '-4' to each side of the equation.
4 + -4 + 9b = 12 + -4

Combine like terms: 4 + -4 = 0
0 + 9b = 12 + -4
9b = 12 + -4

Combine like terms: 12 + -4 = 8
9b = 8

Divide each side by '9'.
b = 0.8888888889

Simplifying
b = 0.8888888889

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