Question

Помогите решить уравнение!

Answer 1

$left { {{3x-3y=2; |*2} atop {-2x+4y=1;|*3}} right. textless = textgreater +left { {{6x-6y=4;} atop {-6x+8y=3;}} right. textless = textgreater left { {{y=3 frac{1}{2}; } atop {x=4 frac{1}{25}. }} right. \ 2y=7; = textgreater y=3,5; \ 6x-6*3,5=4; \ 6x-21=4; \ 6x=25; \ x= frac{25}{6}=4 frac{1}{25}.$