Question

{2x + y= 18
{4x + 3y= 32

Answer 1

Resposta:

x = 11

y = - 4

Explicação passo a passo:

2x + y = 18

4x + 3y = 32

y = 18 - 2x

-> 4x + 3(18 - 2x) = 32

-> 4x + (54 - 6x) = 32

-> 54 - 2x = 32

-> 22 = 2x -> x = 11

y = 18 - 2x -> y = 18 - 2*11

y = 18 - 2*11 -> y = - 4