y^2-13=12

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Solution for y^2-13=12 equation: 


Simplifying
y2 + -13 = 12

Reorder the terms:
-13 + y2 = 12

Solving
-13 + y2 = 12

Solving for variable 'y'.

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

Add '13' to each side of the equation.
-13 + 13 + y2 = 12 + 13

Combine like terms: -13 + 13 = 0
0 + y2 = 12 + 13
y2 = 12 + 13

Combine like terms: 12 + 13 = 25
y2 = 25

Simplifying
y2 = 25

Take the square root of each side:
y = {-5, 5}

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