Solve for w
w=85
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\sqrt{w-4}-3-\left(-3\right)=6-\left(-3\right)
Add 3 to both sides of the equation.
\sqrt{w-4}=6-\left(-3\right)
Subtracting -3 from itself leaves 0.
\sqrt{w-4}=9
Subtract -3 from 6.
w-4=81
Square both sides of the equation.
w-4-\left(-4\right)=81-\left(-4\right)
Add 4 to both sides of the equation.
w=81-\left(-4\right)
Subtracting -4 from itself leaves 0.
w=85
Subtract -4 from 81.
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