3b-4+b-9=

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Solution for 3b-4+b-9= equation:


Simplifying
3b + -4 + b + -9 = 0

Reorder the terms:
-4 + -9 + 3b + b = 0

Combine like terms: -4 + -9 = -13
-13 + 3b + b = 0

Combine like terms: 3b + b = 4b
-13 + 4b = 0

Solving
-13 + 4b = 0

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + 4b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 4b = 0 + 13
4b = 0 + 13

Combine like terms: 0 + 13 = 13
4b = 13

Divide each side by '4'.
b = 3.25

Simplifying
b = 3.25

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