Let a = smaller and b = larger number.
a = b - 7
3a - 9 = b
Substitute b-7 for a in the second equation and solve for b. Put that value in the first equation to find a. To Check, put both values into the second equation.
the difference between two numbers is 7. the larger number is 9 less than 3 times the smaller. find the numbers
1 answer
1 answer