10-2y^2=9

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Solution for 10-2y^2=9 equation: 


Simplifying
10 + -2y2 = 9

Solving
10 + -2y2 = 9

Solving for variable 'y'.

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

Add '-10' to each side of the equation.
10 + -10 + -2y2 = 9 + -10

Combine like terms: 10 + -10 = 0
0 + -2y2 = 9 + -10
-2y2 = 9 + -10

Combine like terms: 9 + -10 = -1
-2y2 = -1

Divide each side by '-2'.
y2 = 0.5

Simplifying
y2 = 0.5

Take the square root of each side:
y = {-0.707106781, 0.707106781}

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