Answer:
x = 7
Step-by-step explanation:
3x - 4 = 17
Add 4 to cancel out the -4 on left side
3x = 21
Now divide by 3 to solve for x
x = 7
Answer:
w = 49 ft and l = 84ft
Step-by-step explanation:
P = 266
The formula for perimeter = 2(l+w)
We know the length is 35 more than the width
l = w+35
Substituting in for Perimeter
266 =2(l+w)
Now replacing l with w+35
266 =2(w+35+w)
Combine like terms
266 = 2(2w+35)
Divide each side by 2
266/2 = 2/2 (2w+35)
133 = 2w+35
Subtract 35 from each side
133-35 = 2w+35-35
98 = 2w
Divide by 2
98/2 = 2w/2
49 =w
We still need to find l
l = w +35
l = 49+35
l = 84