Respuesta :

Answer:

y=1

Step-by-step explanation:

x

+

y

=

4

x

−

y

=

2

Sum these up:

2

x

=

6

x

=

6

2

=

3

Use the first original equation to find y:

x

+

y

=

4

3

+

y

=

4

y

=

4

−

3