Y=4x-6
2x-3y=8
if this problem is to be solved by substitution , which is the correct step

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250