Respuesta :

m<MHJ = 50.

Since MHJ and LHK are vertical angles, they're congruent. So, set them equal to each other.

2x - 20 = x + 15

*
add 20 on both sides and subtract x on both sides*

x = 35.

Plug it back in for MHJ.

(35 * 2) - 20.

MHJ = 50.