What are the 2 numbers if the sum is 70 and they differ by 11?

Question

10493 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2014-11-01T19:08:02

#x + y = 70#
#x - y = 11#

Add the two equations

#(x + y) + (x - y) = 70 + 11#

#2x = 81#

#x = 40.5#

#x + y = 70#

#40.5 + y = 70#

#y = 70 - 40.5#

#y = 29.5#

Your two numbers are #40.5# and #29.5#