28-b=a

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Solution for 28-b=a equation: 


Simplifying
28 + -1b = a

Solving
28 + -1b = a

Solving for variable 'b'.

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

Add '-28' to each side of the equation.
28 + -28 + -1b = -28 + a

Combine like terms: 28 + -28 = 0
0 + -1b = -28 + a
-1b = -28 + a

Divide each side by '-1'.
b = 28 + -1a

Simplifying
b = 28 + -1a

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