20-b=3

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Solution for 20-b=3 equation: 


Simplifying
20 + -1b = 3

Solving
20 + -1b = 3

Solving for variable 'b'.

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

Add '-20' to each side of the equation.
20 + -20 + -1b = 3 + -20

Combine like terms: 20 + -20 = 0
0 + -1b = 3 + -20
-1b = 3 + -20

Combine like terms: 3 + -20 = -17
-1b = -17

Divide each side by '-1'.
b = 17

Simplifying
b = 17

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