Solve for x
x=-96
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\sqrt{4-x}=10
Swap sides so that all variable terms are on the left hand side.
-x+4=100
Square both sides of the equation.
-x+4-4=100-4
Subtract 4 from both sides of the equation.
-x=100-4
Subtracting 4 from itself leaves 0.
-x=96
Subtract 4 from 100.
\frac{-x}{-1}=\frac{96}{-1}
Divide both sides by -1.
x=\frac{96}{-1}
Dividing by -1 undoes the multiplication by -1.
x=-96
Divide 96 by -1.
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