8-3b=12-b

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Solution for 8-3b=12-b equation:


Simplifying
8 + -3b = 12 + -1b

Solving
8 + -3b = 12 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
8 + -3b + b = 12 + -1b + b

Combine like terms: -3b + b = -2b
8 + -2b = 12 + -1b + b

Combine like terms: -1b + b = 0
8 + -2b = 12 + 0
8 + -2b = 12

Add '-8' to each side of the equation.
8 + -8 + -2b = 12 + -8

Combine like terms: 8 + -8 = 0
0 + -2b = 12 + -8
-2b = 12 + -8

Combine like terms: 12 + -8 = 4
-2b = 4

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

Simplifying
b = -2

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