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Simplifying
3y2 + -10 = 20
Reorder the terms:
-10 + 3y2 = 20
Solving
-10 + 3y2 = 20
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 + 3y2 = 20 + 10
Combine like terms: -10 + 10 = 0
0 + 3y2 = 20 + 10
3y2 = 20 + 10
Combine like terms: 20 + 10 = 30
3y2 = 30
Divide each side by '3'.
y2 = 10
Simplifying
y2 = 10
Take the square root of each side:
y = {-3.16227766, 3.16227766}
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