Question

solve the following equation , x-y =1 , x+ y= 3​

Answer 1

Step-by-step explanation:

Solve the System of Equations

x

−

y

=

1

,

x

+

y

=

3

Add

y

to both sides of the equation.

x

=

1

+

y

x

+

y

=

3

Replace all occurrences of

x

with

1

+

y

in each equation.

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1

+

2

y

=

3

x

=

1

+

y

Solve for

y

in the first equation.

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y

=

1

x

=

1

+

y

Replace all occurrences of

y

with

1

in each equation.

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x

=

2

y

=

1

The solution to the system is the complete set of ordered pairs that are valid solutions.

(

2

,

1

)

The result can be shown in multiple forms.

Point Form:

(

2

,

1

)

Equation Form:

x

=

2

,

y

=

1

image of graph

Answer 2

Answer:

(x, y) = (2, 1)

Step-by-step explanation:

(x-y=1) + (x+y=3)

2x=4

x=4/2

x=2

put x=1 in x+y=3,

2+y=3

y=3 - 2

y=1