64-4y^2=

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Solution for 64-4y^2= equation: 


Simplifying
64 + -4y2 = 0

Solving
64 + -4y2 = 0

Solving for variable 'y'.

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

Add '-64' to each side of the equation.
64 + -64 + -4y2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + -4y2 = 0 + -64
-4y2 = 0 + -64

Combine like terms: 0 + -64 = -64
-4y2 = -64

Divide each side by '-4'.
y2 = 16

Simplifying
y2 = 16

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

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