Question

One number is 3 more than twice another number . If the sum of the numbers is 90 , Find the numbers , The largest #

Answer 1

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