Answer:
x=70
Step-by-step explanation:
The same side interior angles add to 180 degrees when m and n are parallel
45+ 2x-5 = 180
Combine like terms
40+2x = 180
Subtract 40 from each side
40-40+2x= 180-40
2x= 140
2x/2 =140/2
x =70
