Question

x+3/y+5=2x/y linear equations in one variable​

Answer 1

Answer:

Step-by-step explanation:

x

+

3

y

=

5

2

x

−

y

=

5

If both equations equal  

5

, we can set them equal to eachother

x

+

3

y

=

2

x

−

y

4

y

=

x

Now we can substitute  

4

y

for  

x

in one of the equations (let's pick the first one)

4

y

+

3

y

=

5

7

y

=

5

y

=

5

7

Now, if  

4

y

=

x

, then  

4

×

5

7

=

x

or  

x

=

20

7

Now to check our work. Let's substitute  

5

7

and  

20

7

for  

y

and  

x

in the second equation. If we have the correct answers, our equation should still equal  

5

.

2

(

20

7

)

−

5

7

40

7

−

5

7

35

7

, which simplifies to  

5

! So we were correct.

Answer 2

=>x+3/

$x + \frac{3}{y} + 5 = \frac{2x}{y} \\ \frac{xy + 3 + 5y}{y} = \frac{2x}{y} \\ y(x + 5) + 3 = 2x \\ \frac{y(x + 5)}{x} = 2 - 3 \\ \frac{y(x + 5)}{x} = - 1$

Hope it help you