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Simplifying
-3x2 + 200 = 8
Reorder the terms:
200 + -3x2 = 8
Solving
200 + -3x2 = 8
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-200' to each side of the equation.
200 + -200 + -3x2 = 8 + -200
Combine like terms: 200 + -200 = 0
0 + -3x2 = 8 + -200
-3x2 = 8 + -200
Combine like terms: 8 + -200 = -192
-3x2 = -192
Divide each side by '-3'.
x2 = 64
Simplifying
x2 = 64
Take the square root of each side:
x = {-8, 8}
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