Answer:
length=10
width=2
Step-by-step explanation:
let w = x
p = l + w
length = 3x + 4
24= 2(3x +4) + 2x
24= 6x + 8 + 2x (combine like terms)
24= 8x + 8 (then subtract each side by 8)
16 = 8x (then divide each side by 8)
2=x
Now plug in 2 for x.
length= 3x+4
3(2)+4
6+4=10
so length equals 10
width equals x, so the width would be 2
