3 years ago

Question 4 Unsaved

1 answer:

8 0

The 1st selection is appropriate.

The result will be equations with y-coefficients of +4 and -4, which will cancel when they are added.

_____
If you do the exercise of selection (3), you get x-coefficients of +4 and +4. You can "combine" these by subtracting one from the other to cancel x-terms. This may also be a viable answer to the question, but you might need to argue the meaning of "combined."

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