+0

word problem

0
46
1

The sum of two numbers is 11. Twice the first number minus the second number is 7  Find the numbers.​

Mar 16, 2021

#1
+73
+1

let's set up two equations, and define two variables. we'll go with x and y again.

here is the system of equations:

x + y = 11

2x - y = 7

again (assuming you are the same Guest who asked a similar question a couple minutes before), i will use elimination.

2x + 2y = 22

2x - y = 7

now, let's subtract these two equations.

3y = 15

y = 5

and again, let's solve for x by plugging in the y value in one of the initial equations.

x + 5 = 11

x = 11 - 5

x = 6

hope this helped! please let me know if you are confused about anything i did :)

Mar 16, 2021

#1
+73
+1

let's set up two equations, and define two variables. we'll go with x and y again.

here is the system of equations:

x + y = 11

2x - y = 7

again (assuming you are the same Guest who asked a similar question a couple minutes before), i will use elimination.

2x + 2y = 22

2x - y = 7

now, let's subtract these two equations.

3y = 15

y = 5

and again, let's solve for x by plugging in the y value in one of the initial equations.

x + 5 = 11

x = 11 - 5

x = 6

hope this helped! please let me know if you are confused about anything i did :)

euph0ria Mar 16, 2021