I really need help with this ASAP

Answer:
Width = 14 inches
Length = 42 inches
Step-by-step explanation:
Length = 3 x width Width = 1/3 x length
First, construct a equation first using one of my formula on the top:
Length = 3 x width
2y + 6 = 3 ( y - 4 ) Distribute 3 to the values inside the ( )
2y + 6 = 3y - 12 Subtract 2y on both sides so there is only one
variable on one side
6 = y -12 Add 12 on both sides
18 = y
Width = ( y - 4 ) in OR 18 - 4 or 14 inches
Length = ( 2y + 6 ) in OR 36 + 6 = 42 inches
Answer: Length=42 Width=14
Step-By-Step-Explanation:
You have to convert it into an equation to find the variable y
so 2y+6=3(y-4) which is equal to
2y+6=3y-12 which is equal to
18=y
When you substitute 18 for y in the equations you will find the length to be 42 and the width to be 14