2b=30-8b

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Solution for 2b=30-8b equation: 


Simplifying
2b = 30 + -8b

Solving
2b = 30 + -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.
2b + 8b = 30 + -8b + 8b

Combine like terms: 2b + 8b = 10b
10b = 30 + -8b + 8b

Combine like terms: -8b + 8b = 0
10b = 30 + 0
10b = 30

Divide each side by '10'.
b = 3

Simplifying
b = 3

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