Question

$\left \{ {{2x+3y=1} \atop {x-y=1}} \right.$

ayuda porfavor TT

Answer 1

Respuesta:

$2x - 3y = 1 \\ x - y = 1 \\ 2 x- 3y = 1 \\ x = 1 + y \\ reemplazamo \\ 2(1 + y) - 3y = 1 \\ 2 + 2x - 3y = 1 \\ 2 - y= 1 \\ - y = 1 - 2 \\ - y = - 1\\ y = 1 \\ \\ x = 1 + y \\ x =1 + 1 \\ x = 2$