5. If we represent the length of a line by a,

how may we represent the length of a

line that is 3 inches longer? If the com-

bined length of the two lines is 15 inches,

what is the length of each line?

Step-by-step explanation:Let a be the length of line

from question we know that

a+3 is another line

Here

a + (a+3) = 15. (Given in question)

2a = 15 - 3

2a=12

a=12/2

a=6

Here a and a + 3 are the length of the line

Finally, 6 and 9 are the lengths