The sum of the measures of the angles shown is 90°.
(5x)
(7x + 6)
10. Write an equation to determine the value of x.
11. Find the value of x.
![The sum of the measures of the angles shown is 90 5x 7x 6 10 Write an equation to determine the value of x 11 Find the value of x class=](https://us-static.z-dn.net/files/d5d/12458c91a4115dbbf8d20dc2c0d71b66.png)