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Question 8 of 10What should you multiply the first equation (top equation) by in order toeliminate the variable x when the two equations are added together?(3x-y-14-12x+y - 7dar hereISUBMIT

Question 8 of 10What should you multiply the first equation top equation by in order toeliminate the variable x when the two equations are added together3xy1412 class=


Answer :

You can multiply the first equation by 4:

3x - y = 1 (*4)

12x-4y=4

Adding both equations:

12x - 4y = 4

+

-12x + y = 7

__________

0x - 3y = 11

so, you eliminate the X.

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