b^2+4=9

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Solution for b^2+4=9 equation: 


Simplifying
b2 + 4 = 9

Reorder the terms:
4 + b2 = 9

Solving
4 + b2 = 9

Solving for variable 'b'.

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

Add '-4' to each side of the equation.
4 + -4 + b2 = 9 + -4

Combine like terms: 4 + -4 = 0
0 + b2 = 9 + -4
b2 = 9 + -4

Combine like terms: 9 + -4 = 5
b2 = 5

Simplifying
b2 = 5

Take the square root of each side:
b = {-2.236067978, 2.236067978}

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