2(x-3)+7(x+2) now you time 2*x which you will get 2x, then you will times 2*-3 which is -6, now you times 7by x and you get 7x and times 7by 2 and you get 14 it should look like this
2x-6+7x+14 and then you add 2x+7x which is 9x then 14+-6 that is 8 it should look like this
Since it forms a "right triangle" we can apply trigonometry. sin x = oppo/hyp sin x = 13/20 x = sin^-1(13/20) x = sin^-1(0.65) x = 40.5 rounded to nearest degree x = 41 degrees