Use the left-to-right elimination method to solve the system.

Question

Use the left-to-right elimination method to solve the system. ​  ​

Quizplus · Accepted Answer

Using the left-to-right elimination method, we can eliminate the y variable by multiplying the first equation by -2 and adding it to the second equation. This gives us:

-2x - 4y = -10 
+4x + 4y = 20

Simplifying, we get:

2x = 10

x = 5

Substituting x = 5 into the first equation:

5 + 2y = 9

2y = 4

y = 2

Therefore, the solution is (5, 2).

Only option C gives the solution (5, 2).

Use the Left-To-Right Elimination Method to Solve the System