Answer:
x = 17 /4 − 15 y /4
Step-by-step explanation:
Move all terms that don't contain x to the right side and solve.
1) 1 and 4
2) 1 and 2
3) 1 and 5
4) 2 and 3
5) 130°
6) 90°
7)25°
8) 115°
