Question

x = y + 2
{15,3)}
x + y = 8​

Answer 1

Resposta:

x = 5 e y=3

Explicação passo-a-passo:

$\left \{ {{x=y+2} \atop {x + y=8}} \right. \\\left \{ {{x-y=2} \atop {x + y=8}} \right. \\\\2x + 0y = 10\\2x =10\\x=\frac{10}{2} \\x=5\\\\x+y=8\\y=8-x\\y=8-5\\y=3$