Which of these strategies would eliminate a variable in the system of equations?

{

5

x

+

3

y

=

9

4

x

-

3

y

=

9

⎩

⎪

⎪

⎨

⎪

⎪

⎧



5x+3y=9

4x-3y=9

Answer:Add the equations. 3y and - 3y will cancel.

Step-by-step explanation:

Then you are left with 9x = 18. Solve for x by dividing both sides by 9 to get x=2. Substitute 2 in place of x in either of the original equations to solve for y.