Answer:
x=16
Step-by-step explanation:
since y=7 when x=8 and your trying to find what x is when y=14. Your really just taking the y value which is 7 then multiplying it by 2 which is 14. then since you multiplied the first y value by 2 you then just multiply the 8 by 2 and that is 16.
2y+5=y+10
y+5=10
y=5
KN=15
2x+6=3x-1
6=x-1
7=x
NM=20