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Simplifying
3x2 + -16 = 85
Reorder the terms:
-16 + 3x2 = 85
Solving
-16 + 3x2 = 85
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '16' to each side of the equation.
-16 + 16 + 3x2 = 85 + 16
Combine like terms: -16 + 16 = 0
0 + 3x2 = 85 + 16
3x2 = 85 + 16
Combine like terms: 85 + 16 = 101
3x2 = 101
Divide each side by '3'.
x2 = 33.66666667
Simplifying
x2 = 33.66666667
Take the square root of each side:
x = {-5.802298395, 5.802298395}
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