Question

Which of the following ordered pairs is the solution to the system of linear equations
x+y=14
2x+y= 24

A.(7, 7) B.(3, 11) C.(6, 12) D.(10, 4)

Answer 1

Subtract first from second equation.

Answer 2

then what do i do

Answer 3

Show the subtraction...if you do the work, you'll see what x is and there's only one answer with that x value.

Answer 4

im not sure wAT TO SUBTRACT

Answer 5

As @ParthKohli said, do this:

2x+y= 24
- (x+y)=14
-------------
=?

Answer 6

10

Answer 7

Yes, x = 10...so y must be 4 (look at the first equation to see that).

Answer 8

10,4 thanks alot