12+4y*y=13

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Solution for 12+4y*y=13 equation: 


Simplifying
12 + 4y * y = 13

Multiply y * y
12 + 4y2 = 13

Solving
12 + 4y2 = 13

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 + 4y2 = 13 + -12

Combine like terms: 12 + -12 = 0
0 + 4y2 = 13 + -12
4y2 = 13 + -12

Combine like terms: 13 + -12 = 1
4y2 = 1

Divide each side by '4'.
y2 = 0.25

Simplifying
y2 = 0.25

Take the square root of each side:
y = {-0.5, 0.5}

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