16=3+b^2*4

Solution for 16=3+b^2*4 equation:

Simplifying
16 = 3 + b2 * 4

Reorder the terms for easier multiplication:
16 = 3 + 4b2

Solving
16 = 3 + 4b2

Solving for variable 'b'.

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

Add '-4b2' to each side of the equation.
16 + -4b2 = 3 + 4b2 + -4b2

Combine like terms: 4b2 + -4b2 = 0
16 + -4b2 = 3 + 0
16 + -4b2 = 3

Add '-16' to each side of the equation.
16 + -16 + -4b2 = 3 + -16

Combine like terms: 16 + -16 = 0
0 + -4b2 = 3 + -16
-4b2 = 3 + -16

Combine like terms: 3 + -16 = -13
-4b2 = -13

Divide each side by '-4'.
b2 = 3.25

Simplifying
b2 = 3.25

Take the square root of each side:
b = {-1.802775638, 1.802775638}