-9=11+8b

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Solution for -9=11+8b equation: 


Simplifying
-9 = 11 + 8b

Solving
-9 = 11 + 8b

Solving for variable 'b'.

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

Add '-8b' to each side of the equation.
-9 + -8b = 11 + 8b + -8b

Combine like terms: 8b + -8b = 0
-9 + -8b = 11 + 0
-9 + -8b = 11

Add '9' to each side of the equation.
-9 + 9 + -8b = 11 + 9

Combine like terms: -9 + 9 = 0
0 + -8b = 11 + 9
-8b = 11 + 9

Combine like terms: 11 + 9 = 20
-8b = 20

Divide each side by '-8'.
b = -2.5

Simplifying
b = -2.5

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