Question 337934
Sorry, I rushed into the answer.  x=16, but then you have to substitute 16 for x into the expressions. So {{{3(16)-10=38}}} 3x-10 is called "the angle." So 38 is the answer.  The other angle is {{2(16)+20=52}}} That angle is the complement.  You have to be very clear on the wording of the problem.