Question

Resolvam:

x+2y=8 2x-y=6

Answer 1

Resposta:

x=4 e y=2

Explicação passo-a-passo:

x+2y = 8 ==> x = 8-2y => x = 8- 2.2 => x = 8 -4 => x= 4

2x-y= 6 ==> 2(8-2y) - y = 6 ==> 16 - 4y - y = 6 ==> -5y = 6- 16 => -5y= -10 => y= 2