3-4b=9

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Solution for 3-4b=9 equation: 


Simplifying
3 + -4b = 9

Solving
3 + -4b = 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 + -4b = 9 + -3

Combine like terms: 3 + -3 = 0
0 + -4b = 9 + -3
-4b = 9 + -3

Combine like terms: 9 + -3 = 6
-4b = 6

Divide each side by '-4'.
b = -1.5

Simplifying
b = -1.5

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