Question

Решите систему уравнений!

Answer 1

$<var>\left \{ {{10-x+2y=18+4y} \atop {2x-3-3y=6x-2y}} \right.</var>$

 

$<var>\left \{ {{y=-4-\frac{x}{2}} \atop {2x-3-3y=6x-2y}} \right.</var>$

 

$<var>\left \{ {{y=-4-\frac{x}{2}} \atop {2x-3-3(-4-\frac{x}{2})=6x-2(-4-\frac{x}{2})}} \right.</var>$

 

$<var>\left \{ {{y=-4-\frac{x}{2}} \atop {-\frac{8x}{2}=-1}} \right.</var>$

 

$<var>\left \{ {{y=-4-\frac{x}{2}} \atop {x=\frac{1}{4}}} \right.</var>$

 

$<var>\left \{ {{y=-4.125 \atop {x=\frac{1}{4}}} \right.</var>$

 

Ответ: $<var>x=\frac{1}{4}}</var>$; $y<var>=-4.125</var>$;