Solve for x
x=-100
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\sqrt{x-2x}=5\times 2
Multiply both sides by 2.
\sqrt{-x}=5\times 2
Combine x and -2x to get -x.
\sqrt{-x}=10
Multiply 5 and 2 to get 10.
-x=100
Square both sides of the equation.
\frac{-x}{-1}=\frac{100}{-1}
Divide both sides by -1.
x=\frac{100}{-1}
Dividing by -1 undoes the multiplication by -1.
x=-100
Divide 100 by -1.
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