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Simplifying
3y2 + -2 = 7
Reorder the terms:
-2 + 3y2 = 7
Solving
-2 + 3y2 = 7
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 3y2 = 7 + 2
Combine like terms: -2 + 2 = 0
0 + 3y2 = 7 + 2
3y2 = 7 + 2
Combine like terms: 7 + 2 = 9
3y2 = 9
Divide each side by '3'.
y2 = 3
Simplifying
y2 = 3
Take the square root of each side:
y = {-1.732050808, 1.732050808}
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