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What is the result of adding these two equations? 2x+7y=4 -2x-8y=-2

What is the result of adding these two equations? 2x+7y=4 -2x-8y=-2
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12 votes
What is the result of adding these two equations?

2x+7y=4
-2x-8y=-2

User Hou Lu
by
8.3k points

2 Answers

11 votes
After adding them together you should get -2
User BLoB
by
8.8k points
9 votes

Answer:

y=-2

Explanation:

2x-2x=0

7y-8y=-y

4-2=2

-Y=2

Y=-2

User Teo Kok Keong
by
7.8k points
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