20-b^2=-5

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Solution for 20-b^2=-5 equation: 


Simplifying
20 + -1b2 = -5

Solving
20 + -1b2 = -5

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 + -1b2 = -5 + -20

Combine like terms: 20 + -20 = 0
0 + -1b2 = -5 + -20
-1b2 = -5 + -20

Combine like terms: -5 + -20 = -25
-1b2 = -25

Divide each side by '-1'.
b2 = 25

Simplifying
b2 = 25

Take the square root of each side:
b = {-5, 5}

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