-20+13b=9b+20+20

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Solution for -20+13b=9b+20+20 equation:


Simplifying
-20 + 13b = 9b + 20 + 20

Reorder the terms:
-20 + 13b = 20 + 20 + 9b

Combine like terms: 20 + 20 = 40
-20 + 13b = 40 + 9b

Solving
-20 + 13b = 40 + 9b

Solving for variable 'b'.

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

Add '-9b' to each side of the equation.
-20 + 13b + -9b = 40 + 9b + -9b

Combine like terms: 13b + -9b = 4b
-20 + 4b = 40 + 9b + -9b

Combine like terms: 9b + -9b = 0
-20 + 4b = 40 + 0
-20 + 4b = 40

Add '20' to each side of the equation.
-20 + 20 + 4b = 40 + 20

Combine like terms: -20 + 20 = 0
0 + 4b = 40 + 20
4b = 40 + 20

Combine like terms: 40 + 20 = 60
4b = 60

Divide each side by '4'.
b = 15

Simplifying
b = 15

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