Plz help me.
Solve the system of linear equations by substitution
X+y=-7
-5x+y=5...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 10.10.2020 15:01, jfarley259
Plz help me.
Solve the system of linear equations by substitution
X+y=-7
-5x+y=5
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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