3b-9-8b=11

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Solution for 3b-9-8b=11 equation: 


Simplifying
3b + -9 + -8b = 11

Reorder the terms:
-9 + 3b + -8b = 11

Combine like terms: 3b + -8b = -5b
-9 + -5b = 11

Solving
-9 + -5b = 11

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 + -5b = 11 + 9

Combine like terms: -9 + 9 = 0
0 + -5b = 11 + 9
-5b = 11 + 9

Combine like terms: 11 + 9 = 20
-5b = 20

Divide each side by '-5'.
b = -4

Simplifying
b = -4

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