What is a possible first step to eliminate a variable in the following system?
2x - 3y = -1
3x - 4y = -3

A) Multiply the first equation by -3 and the second equation by 2.
B) Multiply the first equation by 3 and the second equation by -2.
C) Multiply the first equation by 4 and the second equation by 3.
D) All of the above.

Question

What is a possible first step to eliminate a variable in the following system?
2x - 3y = -1
3x - 4y = -3

A) Multiply the first equation by -3 and the second equation by 2. 
B) Multiply the first equation by 3 and the second equation by -2. 
C) Multiply the first equation by 4 and the second equation by 3. 
D) All of the above.

amistre64 · Answer

any of them are doable .... so they are all possible actions to take.  some may just be smarter to do than others.

anonymous · Answer

so all may be done.. some may just be simpler/ faster etc?

amistre64 · Answer

yep

anonymous · Answer

thank you!!!

amistre64 · Answer

youre welcome

anonymous · Answer

all of the above are true...your choice whic you select........