20=8+b

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Solution for 20=8+b equation:


Simplifying
20 = 8 + b

Solving
20 = 8 + 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.
20 + -1b = 8 + b + -1b

Combine like terms: b + -1b = 0
20 + -1b = 8 + 0
20 + -1b = 8

Add '-20' to each side of the equation.
20 + -20 + -1b = 8 + -20

Combine like terms: 20 + -20 = 0
0 + -1b = 8 + -20
-1b = 8 + -20

Combine like terms: 8 + -20 = -12
-1b = -12

Divide each side by '-1'.
b = 12

Simplifying
b = 12

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