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-4x + y =6 -5x - y = 21 explain????
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4 votes
-4x + y =6
-5x - y = 21

explain????

User Dhokas
by
7.5k points

2 Answers

4 votes
well, Did you use a calculator If so then the answer is correct!!!! And -4x + y= 4 times X + Y. You figure out the rest.
User Nayan Soni
by
8.2k points
4 votes
-4x+y=6
-5x-y=21

You have to add the 2 equations so you get:

-9x=27
Divide both sides by -9 (so that you have x on the left side):

x=-3

Hope this helps :)
User Andrew Nexintong
by
7.5k points
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