8b=90-b

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Solution for 8b=90-b equation: 


Simplifying
8b = 90 + -1b

Solving
8b = 90 + -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.
8b + b = 90 + -1b + b

Combine like terms: 8b + b = 9b
9b = 90 + -1b + b

Combine like terms: -1b + b = 0
9b = 90 + 0
9b = 90

Divide each side by '9'.
b = 10

Simplifying
b = 10

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