3-b=20

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Solution for 3-b=20 equation:


Simplifying
3 + -1b = 20

Solving
3 + -1b = 20

Solving for variable 'b'.

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

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

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

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

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

Simplifying
b = -17

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