y^2-12=6

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Solution for y^2-12=6 equation: 


Simplifying
y2 + -12 = 6

Reorder the terms:
-12 + y2 = 6

Solving
-12 + y2 = 6

Solving for variable 'y'.

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

Add '12' to each side of the equation.
-12 + 12 + y2 = 6 + 12

Combine like terms: -12 + 12 = 0
0 + y2 = 6 + 12
y2 = 6 + 12

Combine like terms: 6 + 12 = 18
y2 = 18

Simplifying
y2 = 18

Take the square root of each side:
y = {-4.242640687, 4.242640687}

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