Is it C? (Check my work)
Given the system of equations presented here:
4x + y = 4
2x + 7y = 28

Which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated?

Multiply the second equation by −1 to get −2x − 7y = −28
Multiply the second equation by −4 to get −8x − 28y = −112
Multiply the first equation by −7 to get −28x − 7y = −28
Multiply the first equation by −2 to get −8x − 2y = −8

Question

Is it C? (Check my work)
Given the system of equations presented here:
4x + y = 4
2x + 7y = 28

Which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated?

 Multiply the second equation by −1 to get −2x − 7y = −28
 Multiply the second equation by −4 to get −8x − 28y = −112
 Multiply the first equation by −7 to get −28x − 7y = −28
 Multiply the first equation by −2 to get −8x − 2y = −8

anonymous · Answer

@saseal

danjs · Answer

yes right, then the y drops out when you add them