Question

PLEASE PLEASE PLEASE HELP ME

One number is eleven less than another. If their sum is increased by seven, the result is 90. Find the numbers. (Enter your answers as a comma-separated list.)

Answer 1

Let the numbers be x and y.
X-11=y
X+y+7=90 or x+7=-y+90
Add the 2 equations together.
2x-4=90
2x=94
X=47
So 47+y+7=90 so y+54=90 so y=36

Check in other equation:
X-11=y
47-11=36
36=36 it works

So your numbers are 47, 36