Answer:
x=76
Explanation:
46+x+20=2x-10
x+66=2x-10
-2x -2x
-x+66= -10
-66 -66
-x= -76
/-1 /-1
x=76 before i finish the rest is that a 46 in the bottom left corner of the triangle in the 1st question
76 might not be right if the angle measure isn't 46