80=5Y*Y

Solution for 80=5Y*Y equation:

Simplifying
80 = 5Y * Y

Multiply Y * Y
80 = 5Y2

Solving
80 = 5Y2

Solving for variable 'Y'.

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

Add '-5Y2' to each side of the equation.
80 + -5Y2 = 5Y2 + -5Y2

Combine like terms: 5Y2 + -5Y2 = 0
80 + -5Y2 = 0

Add '-80' to each side of the equation.
80 + -80 + -5Y2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -5Y2 = 0 + -80
-5Y2 = 0 + -80

Combine like terms: 0 + -80 = -80
-5Y2 = -80

Divide each side by '-5'.
Y2 = 16

Simplifying
Y2 = 16

Take the square root of each side:
Y = {-4, 4}