Answer:
D) none of the above
Step-by-step explanation:
Given system of equation is x − y = 2 and 3x − 3y = 2
And there are four choices
A) multiply the first equation by 2
B) replace the first equation with the sum of x − y = 2 and 3x − 3y = 2
C) divide the second equation by 3
D) none of the above
Now we need to find about which of the following operations will change the solution of the system x − y = 2 and 3x − 3y = 2?
We know that adding or subtracting or multiplying or dividing same thing on both sides of equation doesn't change the solution so A, C are not possible.
B) says to replace given equations by itself so that will also not change the solution
Hence correct choice will be D.
