Use the left-to-right elimination method to solve the system.
A)solution:
B)solution:
C)solution:
D)solution:
E)solution:

Question

Use the left-to-right elimination method to solve the system. ​  ​
A)solution: 
B)solution: 
C)solution: 
D)solution: 
E)solution:

Quizplus · Accepted Answer

Starting with the first equation, we have:

-3x + 4y = 7

To eliminate x in the second equation, we can add 2 times the first equation to it:

6x + 2y = 14
+ (-2)(-3x + 4y = 7)
------------------------
0x + 10y = 28

Simplifying this new equation, we get:

y = 2.8

Substituting this value of y back into the first equation, we get:

-3x + 4(2.8) = 7
-3x = -4.4
x ≈ 1.47

Therefore, the solution is (x, y) ≈ (1.47, 2.8), which matches option B.

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