20-9=29-8b

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Solution for 20-9=29-8b equation:


Simplifying
20 + -9 = 29 + -8b

Combine like terms: 20 + -9 = 11
11 = 29 + -8b

Solving
11 = 29 + -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.
11 + 8b = 29 + -8b + 8b

Combine like terms: -8b + 8b = 0
11 + 8b = 29 + 0
11 + 8b = 29

Add '-11' to each side of the equation.
11 + -11 + 8b = 29 + -11

Combine like terms: 11 + -11 = 0
0 + 8b = 29 + -11
8b = 29 + -11

Combine like terms: 29 + -11 = 18
8b = 18

Divide each side by '8'.
b = 2.25

Simplifying
b = 2.25

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