Answer: 2l+2w=48
Subtract 2w from both sides.
2l=48−2w
Divide both sides by 2.
2
2l
=
48−2w
Dividing by 2 undoes the multiplication by 2.
l=
Divide 48−2w by 2.
l=24−w
Answer:
14centimeters
Step-by-step explanation:
from our equation,
2l + 2w = 48
we know that the width = 10cm
so,
2l + 2( 10 ) = 48
2l + 20 = 48
2l = 48 - 20
2l = 28
divide through by 2
2l / 2 = 28 / 2
l = 14
therefore,
l = 14 centimeters
