b-8=9-b

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Solution for b-8=9-b equation:


Simplifying
b + -8 = 9 + -1b

Reorder the terms:
-8 + b = 9 + -1b

Solving
-8 + b = 9 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
-8 + b + b = 9 + -1b + b

Combine like terms: b + b = 2b
-8 + 2b = 9 + -1b + b

Combine like terms: -1b + b = 0
-8 + 2b = 9 + 0
-8 + 2b = 9

Add '8' to each side of the equation.
-8 + 8 + 2b = 9 + 8

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

Combine like terms: 9 + 8 = 17
2b = 17

Divide each side by '2'.
b = 8.5

Simplifying
b = 8.5

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