(10xy-8)+(13xy+9b+20)=

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Solution for (10xy-8)+(13xy+9b+20)= equation:


Simplifying
(10xy + -8) + (13xy + 9b + 20) = 0

Reorder the terms:
(-8 + 10xy) + (13xy + 9b + 20) = 0

Remove parenthesis around (-8 + 10xy)
-8 + 10xy + (13xy + 9b + 20) = 0

Reorder the terms:
-8 + 10xy + (20 + 9b + 13xy) = 0

Remove parenthesis around (20 + 9b + 13xy)
-8 + 10xy + 20 + 9b + 13xy = 0

Reorder the terms:
-8 + 20 + 9b + 10xy + 13xy = 0

Combine like terms: -8 + 20 = 12
12 + 9b + 10xy + 13xy = 0

Combine like terms: 10xy + 13xy = 23xy
12 + 9b + 23xy = 0

Solving
12 + 9b + 23xy = 0

Solving for variable 'b'.

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

Add '-12' to each side of the equation.
12 + 9b + -12 + 23xy = 0 + -12

Reorder the terms:
12 + -12 + 9b + 23xy = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 9b + 23xy = 0 + -12
9b + 23xy = 0 + -12

Combine like terms: 0 + -12 = -12
9b + 23xy = -12

Add '-23xy' to each side of the equation.
9b + 23xy + -23xy = -12 + -23xy

Combine like terms: 23xy + -23xy = 0
9b + 0 = -12 + -23xy
9b = -12 + -23xy

Divide each side by '9'.
b = -1.333333333 + -2.555555556xy

Simplifying
b = -1.333333333 + -2.555555556xy

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