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7nadin3 [17]
3 years ago
12

Please Please Please help! 

Mathematics
1 answer:
lara [203]3 years ago
4 0
Take the first equation and set it to equal x by subtracting 5y from both sides and multiplying by -1.  Looks like this...

-x + 5y = 1
     -5y      -5y
-x = -5y + 1
-1(-x = -5y + 1)
x = 5y - 1   ... substitute this into the second equation you get.....

2(5y - 1) + 4y = -4   answer is #2
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