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Reptile [31]
3 years ago
7

Need help with solving a 2x2 system of linear equations PLEASE HELP ME

Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0
\bf \begin{array}{llll}
-5x-y=5\\
-5x+y=5\\
-------\\
-10x+0=10
\end{array}\implies -10x=10\implies x=-1

so if x = -1, let's plug that in the second equation

-5(-1)+y = 5
5+y = 5
y = 0
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