Solve this linear equation using substitution. (Please show work!)
X + Y = 7
7x + y = 1...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 06.11.2020 03:20, heydisr
Solve this linear equation using substitution. (Please show work!)
X + Y = 7
7x + y = 1
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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