Question

x-y=3
x+3y=11

ajudaaaa​

Answer 1

Resposta:

• x-y=3

x+3y=11

x=3+y

x+3y=11

3+y+3y=11

4y=11-3

4y=8

y=8/4

y=2

x-y=3

x-2=3

x=5

Explicação passo a passo:

• x-y=3

x+3y=11

x=3+y

x+3y=11

3+y+3y=11

4y=11-3

4y=8

y=8/4

y=2

x-y=3

x-2=3

x=5

Answer 2

Resposta:

x=3+yx=3+y

x+3y=11

Explicação passo-a-passo:

x+3y=11x+3y=11 por 3+y3+y.

(3+y)+3y=11(3+y)+3y=11

x=3+y