2b-4-8b-9=

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Solution for 2b-4-8b-9= equation:


Simplifying
2b + -4 + -8b + -9 = 0

Reorder the terms:
-4 + -9 + 2b + -8b = 0

Combine like terms: -4 + -9 = -13
-13 + 2b + -8b = 0

Combine like terms: 2b + -8b = -6b
-13 + -6b = 0

Solving
-13 + -6b = 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 + -6b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + -6b = 0 + 13
-6b = 0 + 13

Combine like terms: 0 + 13 = 13
-6b = 13

Divide each side by '-6'.
b = -2.166666667

Simplifying
b = -2.166666667

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