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Simplifying
-2 = -2 + -2x2
Add '2' to each side of the equation.
-2 + 2 = -2 + 2 + -2x2
Combine like terms: -2 + 2 = 0
0 = -2 + 2 + -2x2
Combine like terms: -2 + 2 = 0
0 = 0 + -2x2
0 = -2x2
Solving
0 = -2x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2x2' to each side of the equation.
0 + 2x2 = -2x2 + 2x2
Remove the zero:
2x2 = -2x2 + 2x2
Combine like terms: -2x2 + 2x2 = 0
2x2 = 0
Divide each side by '2'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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