You can simply use substitution. Since 1L=4w, what we can do is substitute any Ls for 4w and vice versa. 2L+2w=60 8w+2w=60 10w=60 w=6 Next, we insert w into the equation to find the value of l. 2L+2(6)=60 2L+12=60 2L=48 L=24 We can check our answers by inserting them into the second equation 1(24)=4(6) 24=24 This is true therefore our answer is correct.
