Question

I don't understand quite how to do this one I don't know what angle I have to simplify I did it all together still I don't get it. If you answer this please show the step so I can better understand.

Answer 1

x=18

Explanation:

This two angles are complementary, which means that they both add up to 90. So we could set up the equation:

(4x+1)+(x-1)=90

5x=90

x=
`(90)/(5)`

x=18

Have a nice day! :)