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Simplifying
-2x2 + 18 = -374
Reorder the terms:
18 + -2x2 = -374
Solving
18 + -2x2 = -374
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 + -2x2 = -374 + -18
Combine like terms: 18 + -18 = 0
0 + -2x2 = -374 + -18
-2x2 = -374 + -18
Combine like terms: -374 + -18 = -392
-2x2 = -392
Divide each side by '-2'.
x2 = 196
Simplifying
x2 = 196
Take the square root of each side:
x = {-14, 14}
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