12=2b-28

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Solution for 12=2b-28 equation: 


Simplifying
12 = 2b + -28

Reorder the terms:
12 = -28 + 2b

Solving
12 = -28 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
12 + -2b = -28 + 2b + -2b

Combine like terms: 2b + -2b = 0
12 + -2b = -28 + 0
12 + -2b = -28

Add '-12' to each side of the equation.
12 + -12 + -2b = -28 + -12

Combine like terms: 12 + -12 = 0
0 + -2b = -28 + -12
-2b = -28 + -12

Combine like terms: -28 + -12 = -40
-2b = -40

Divide each side by '-2'.
b = 20

Simplifying
b = 20

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