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Simplifying
3y2 + -5 = 16
Reorder the terms:
-5 + 3y2 = 16
Solving
-5 + 3y2 = 16
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + 5 + 3y2 = 16 + 5
Combine like terms: -5 + 5 = 0
0 + 3y2 = 16 + 5
3y2 = 16 + 5
Combine like terms: 16 + 5 = 21
3y2 = 21
Divide each side by '3'.
y2 = 7
Simplifying
y2 = 7
Take the square root of each side:
y = {-2.645751311, 2.645751311}
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