The measure of one angle is thirteen less than five times the measure of another angle. The sum of the measures of the two angles is 140°. What are the two angles?

we can set up two equations here:

x = 5y - 13

x + y = 140

now, we can use substitution:

5y - 13 + y = 140

6y - 13 = 140

6y = 173

y = 173/6

x = 667/6

hope this helped! please correct me if i am wrong:)

13 + 140 = 153 NOT 163 or 173

whoops, thank you for catching that :O

my bad, y should be 153/6, sorry about that !!

(...and i hope you can solve for x on your own:))