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Simplifying
3x2 + 9 = 93
Reorder the terms:
9 + 3x2 = 93
Solving
9 + 3x2 = 93
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + 3x2 = 93 + -9
Combine like terms: 9 + -9 = 0
0 + 3x2 = 93 + -9
3x2 = 93 + -9
Combine like terms: 93 + -9 = 84
3x2 = 84
Divide each side by '3'.
x2 = 28
Simplifying
x2 = 28
Take the square root of each side:
x = {-5.291502622, 5.291502622}
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