Question

2x + y = 3 ,\\ 3x-2y=8.

Answer 1

$\displaystyle\bf\\\left \{ {{2x + y = 3 \: \: | \times 2 } \atop {3x - 2y = 8 }} \right. \\ \displaystyle\bf\\ + \left \{ {{4x + 2y = 6} \atop {3x - 2y = 8 }} \right. \\ \\ 4x + 3x = 6 + 8 \\ 7x = 14 \\ x = 14 \div 7 \\ x = 2 \\ \\ 2 \times 2 + y = 3 \\ 4 + y = 3 \\ y = 3 - 4 \\ y = - 1$

Ответ: ( 2 ; - 1 )