Answer:
Step-by-step explanation:
18 - I took the test on edg.
X=90 which (180-90) is 90 for m and n
Answer:
-10
Step-by-step explanation:
combine like terms -5x+9=59 subtract 9 from both side and get -5x=50 so x=-10
Answer:
-1
Step-by-step explanation: