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Simplifying
200 + -1x2 = 100
Solving
200 + -1x2 = 100
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 + -1x2 = 100 + -200
Combine like terms: 200 + -200 = 0
0 + -1x2 = 100 + -200
-1x2 = 100 + -200
Combine like terms: 100 + -200 = -100
-1x2 = -100
Divide each side by '-1'.
x2 = 100
Simplifying
x2 = 100
Take the square root of each side:
x = {-10, 10}
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