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3x - 4y = 73x 2y = -5when the second equation is subtracted from the first, the resulting equation is _____.
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3x - 4y = 73x 2y = -5when the second equation is subtracted from the first, the resulting equation is _____.

User Danwilkie
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2 Answers

6 votes

Answer: -2y=12

Explanation:

User Brig Ader
by
7.4k points
4 votes
It will depend on the sign of 2y. If it's positive;
3x-4y=7
3x+2y=-5
___________
-6y=12

If 2y is, however, negative;
3x-4y=7
3x-2y=-5
------------
-2y=12
User Bonaldi
by
6.8k points
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