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Simplifying
-3x2 + -18 = -93
Reorder the terms:
-18 + -3x2 = -93
Solving
-18 + -3x2 = -93
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '18' to each side of the equation.
-18 + 18 + -3x2 = -93 + 18
Combine like terms: -18 + 18 = 0
0 + -3x2 = -93 + 18
-3x2 = -93 + 18
Combine like terms: -93 + 18 = -75
-3x2 = -75
Divide each side by '-3'.
x2 = 25
Simplifying
x2 = 25
Take the square root of each side:
x = {-5, 5}
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