8-(13+b)=b-9

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


Simplifying
8 + -1(13 + b) = b + -9
8 + (13 * -1 + b * -1) = b + -9
8 + (-13 + -1b) = b + -9

Combine like terms: 8 + -13 = -5
-5 + -1b = b + -9

Reorder the terms:
-5 + -1b = -9 + b

Solving
-5 + -1b = -9 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-5 + -1b + -1b = -9 + b + -1b

Combine like terms: -1b + -1b = -2b
-5 + -2b = -9 + b + -1b

Combine like terms: b + -1b = 0
-5 + -2b = -9 + 0
-5 + -2b = -9

Add '5' to each side of the equation.
-5 + 5 + -2b = -9 + 5

Combine like terms: -5 + 5 = 0
0 + -2b = -9 + 5
-2b = -9 + 5

Combine like terms: -9 + 5 = -4
-2b = -4

Divide each side by '-2'.
b = 2

Simplifying
b = 2

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