Question #0c67e

1 Answer
Sep 8, 2017

x=10 y=40

Explanation:

Let u take the the first number x and the second y and then restate the problems in terms of x and y:

  1. #y=4x#
  2. #x+y=50#

To solve it we just substitute #y# with #4x# in the second equation since #y=4x#:

#x+y=50#
#=x+4x=50#
#=5x=50#

Dividing both sides by 5:
#(5x)/5=50/5#
#rarr x=10#

To find y we just have to put value of x in the first equation.
#y=4x=4(10)=40#