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Simplifying
-16 = 8 + -3x2
Solving
-16 = 8 + -3x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3x2' to each side of the equation.
-16 + 3x2 = 8 + -3x2 + 3x2
Combine like terms: -3x2 + 3x2 = 0
-16 + 3x2 = 8 + 0
-16 + 3x2 = 8
Add '16' to each side of the equation.
-16 + 16 + 3x2 = 8 + 16
Combine like terms: -16 + 16 = 0
0 + 3x2 = 8 + 16
3x2 = 8 + 16
Combine like terms: 8 + 16 = 24
3x2 = 24
Divide each side by '3'.
x2 = 8
Simplifying
x2 = 8
Take the square root of each side:
x = {-2.828427125, 2.828427125}
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