49=y^2

Solution for 49=y^2 equation:

Simplifying
49 = y2

Solving
49 = 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.
49 + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
49 + -1y2 = 0

Add '-49' to each side of the equation.
49 + -49 + -1y2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + -1y2 = 0 + -49
-1y2 = 0 + -49

Combine like terms: 0 + -49 = -49
-1y2 = -49

Divide each side by '-1'.
y2 = 49

Simplifying
y2 = 49

Take the square root of each side:
y = {-7, 7}