13=1-7b+3b+9b+2

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Solution for 13=1-7b+3b+9b+2 equation:


Simplifying
13 = 1 + -7b + 3b + 9b + 2

Reorder the terms:
13 = 1 + 2 + -7b + 3b + 9b

Combine like terms: 1 + 2 = 3
13 = 3 + -7b + 3b + 9b

Combine like terms: -7b + 3b = -4b
13 = 3 + -4b + 9b

Combine like terms: -4b + 9b = 5b
13 = 3 + 5b

Solving
13 = 3 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
13 + -5b = 3 + 5b + -5b

Combine like terms: 5b + -5b = 0
13 + -5b = 3 + 0
13 + -5b = 3

Add '-13' to each side of the equation.
13 + -13 + -5b = 3 + -13

Combine like terms: 13 + -13 = 0
0 + -5b = 3 + -13
-5b = 3 + -13

Combine like terms: 3 + -13 = -10
-5b = -10

Divide each side by '-5'.
b = 2

Simplifying
b = 2

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