(3+6+5)5=y^2

Solution for (3+6+5)5=y^2 equation:

Simplifying
(3 + 6 + 5) * 5 = y2

Combine like terms: 3 + 6 = 9
(9 + 5) * 5 = y2

Combine like terms: 9 + 5 = 14
(14) * 5 = y2

Multiply 14 * 5
70 = y2

Solving
70 = y2

Solving for variable 'y'.

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

Add '-1y2' to each side of the equation.
70 + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
70 + -1y2 = 0

Add '-70' to each side of the equation.
70 + -70 + -1y2 = 0 + -70

Combine like terms: 70 + -70 = 0
0 + -1y2 = 0 + -70
-1y2 = 0 + -70

Combine like terms: 0 + -70 = -70
-1y2 = -70

Divide each side by '-1'.
y2 = 70

Simplifying
y2 = 70

Take the square root of each side:
y = {-8.366600265, 8.366600265}