12+1.66b+11-18=20

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Solution for 12+1.66b+11-18=20 equation: 


Simplifying
12 + 1.66b + 11 + -18 = 20

Reorder the terms:
12 + 11 + -18 + 1.66b = 20

Combine like terms: 12 + 11 = 23
23 + -18 + 1.66b = 20

Combine like terms: 23 + -18 = 5
5 + 1.66b = 20

Solving
5 + 1.66b = 20

Solving for variable 'b'.

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

Add '-5' to each side of the equation.
5 + -5 + 1.66b = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 1.66b = 20 + -5
1.66b = 20 + -5

Combine like terms: 20 + -5 = 15
1.66b = 15

Divide each side by '1.66'.
b = 9.036144578

Simplifying
b = 9.036144578

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