18+b=3b-11b-9

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Solution for 18+b=3b-11b-9 equation:


Simplifying
18 + b = 3b + -11b + -9

Reorder the terms:
18 + b = -9 + 3b + -11b

Combine like terms: 3b + -11b = -8b
18 + b = -9 + -8b

Solving
18 + b = -9 + -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.
18 + b + 8b = -9 + -8b + 8b

Combine like terms: b + 8b = 9b
18 + 9b = -9 + -8b + 8b

Combine like terms: -8b + 8b = 0
18 + 9b = -9 + 0
18 + 9b = -9

Add '-18' to each side of the equation.
18 + -18 + 9b = -9 + -18

Combine like terms: 18 + -18 = 0
0 + 9b = -9 + -18
9b = -9 + -18

Combine like terms: -9 + -18 = -27
9b = -27

Divide each side by '9'.
b = -3

Simplifying
b = -3

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