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nekit [7.7K]
3 years ago
5

Solve the following system of equations by elimination. Express

Mathematics
1 answer:
Greeley [361]3 years ago
4 0
Add the two equations together with the same variables

-x+4x=3x
-3y+3y=0
20+1=21

You now get

3x=21

Divide and find x =7

Plug in x to the equation to find y
Y=-9

(7,-9)
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