Question

One number is 28 larger than another. The sum of the numbers is 420. What are the two numbers?

Answer 1

$x-\ first\ number\\ y- \ second \ number\\\\ x=y+28\\\\ x+y=420\\\\ y+28+y=420\\\\ 2x+28=420\ \ \ | subtract\ 28\\\\ 2x=392\ \ \ | divide\ by\ 2\\\\ x=196\\\\ y=420-196=224\\\\ Two\ numbers:\ 224\ and\ 196.$

Answer 2

let x= first number x+280= second number 2x+28= 420 2x= 392 x= 196 196+28=224