Answer:
61,29
Step-by-step explanation:
x=one number
y=another number
Since you have 2 variables, you need 2 equations:
x+y=90 (the sum of the 2 numbers=90)
x=2y+3 (one number is 3 more than twice another number)
Solve the first equation for x:
x=90-y
Substitute 18-y for x in the 2nd equation:
90-y=2y+3
90=3y+3
87=3y
29=y
So one of the numbers is 29. Substitute 29 back into the 1st equation to get the other number:
x+29=90
x=61
