Mathematics, 15.01.2020 06:31 coolusername1314
Find solution to the system of linear equations. x1 - 3x2 = 5 , x1 + x2 = 2
Answers: 2
![x_2-(-3x_2)=2-5\ \ [\because (-)(-)=(+)]\\\\\Rightarrow\ x_2+3x_2=-3\\\\\Rightarrow\ 4x_2=-3\\\\\Rightarrow\ x_2=\dfrac{-3}{4}](/tpl/images/0455/7399/365ce.png)
in (2) , we get
[∵ (-)(-)=(+)]
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Find solution to the system of linear equations. x1 - 3x2 = 5 , x1 + x2 = 2...
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