( {2x-y=1 ( {3x+2y=7

Question

( {2x-y=1
( {3x+2y=7

Answer 1

\left \{ {{y=2x-1} \atop {3x+4x-2=7}} \right.  \left \{ {{y=2x-1} \atop {7x=9}} \right.  \left \{ {{y= \frac{18}{7}-1= \frac{11}{7}  } \atop {x =\frac{9}{7}}} \right.Ответ: x= 9/7, y=11/7