Solve for x
x=\frac{\sqrt{7}}{5}\approx 0.529150262
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5x=\sqrt{1+6}
The factorial of 3 is 6.
5x=\sqrt{7}
Add 1 and 6 to get 7.
\frac{5x}{5}=\frac{\sqrt{7}}{5}
Divide both sides by 5.
x=\frac{\sqrt{7}}{5}
Dividing by 5 undoes the multiplication by 5.
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