Question 475537
One number is 5 less than 3 times a second number. 
Their sum is 43. Find the numbers.
-------------------
x = 3y -5
x + y = 43
----
Substitute for "x" and solve for "y":
3y-5 + y = 43
4y = 38
y = 19/2 = 9.5
---------------------
Solve for "x":
x = 3(9.5) - 5
---
x = 28.5 - 5
---
x = 23.5
============
Cheers,
Stan H.
=============