6b+9-b=30

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Solution for 6b+9-b=30 equation:


Simplifying
6b + 9 + -1b = 30

Reorder the terms:
9 + 6b + -1b = 30

Combine like terms: 6b + -1b = 5b
9 + 5b = 30

Solving
9 + 5b = 30

Solving for variable 'b'.

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

Add '-9' to each side of the equation.
9 + -9 + 5b = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 5b = 30 + -9
5b = 30 + -9

Combine like terms: 30 + -9 = 21
5b = 21

Divide each side by '5'.
b = 4.2

Simplifying
b = 4.2

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