Write a system of two equations using x and y in each for the following. Then solve. The sum of two numbers is 170 and their difference is 26. Find the two numbers.

Question

Write a system of two equations using x and y in each for the following.  Then solve.  The sum of two numbers is 170 and their difference is 26. Find the two numbers.

campbell_st · Answer

so you have 2 numbers, let them be x and y

you know 

x + y = 170 

x - y = 26

to solve add the equations together... 

2x = 196

solve for x

when you have x

substitute into either equation to find y