Question

4x-y=8 x+y=18 qual o valor de x e
y

Answer 1

Resposta:

x= 26/5 e y=64/5

Explicação passo-a-passo:

4x-y= 8

x+y=18

________

4x+x=8+18

5x=26

x=26/5

y=18-x

y=18-26/5

y=(90-26)/5

y= 64/5