Answer:
x=25
Step-by-step explanation:
they are supplementary and adjacent, thus you do 4x-3+3x+8=180, simplify and get 7x+5=180, subtract 5 from 180 which is 175, then ending up with 7x=175 and 175/7 is 25.
that is 25
5x+28=7x-4
5x+32=7x
32=2x
x=16
Hope This Helps!!!