I'm pretty sure both B and C equal 12 as well
Since the triangle equals 180 and the angels are all congruent
Answer:
Yes, x-10 is an accurate expression. . . .
Hope that helps
3.) 5x-6=0, Add 6 to either side -> 5x=6, divide each side by 5 -> x=6/5 ---- 4.) x+y/3=5, multiple each side by 3 -> x+y=15, move y to the other side -> x=-y+15