Question

If x=2y and x+2y=8 find the value of x and y​

Answer 1

Step-by-step explanation:

Given:-

x=2y and x+2y=8

To find:-

If x=2y and x+2y=8 find the value of x and y

Solution:-

Given equations are x=2y-----(1)

and x+2y=8------(2)

On Substituting the value of x in the equation (2)

=>2y+2y=8

=>4y=8

=>y=8/4

=>y=2

The value of y=2

On Substituting the value of y in the equation (1)

=>x=2(2)=4

The value of x=4

Answer:-

The value of x=4

The value of y=2

Check:-

x=4=2(2)=2y

and

x+2y=4+2(2)=4+4=8

Verified the given relations .

Answer 2

Given:-

x=2y and x+2y=8

To find:-

If x=2y and x+2y=8 find the value of x and y

Solution:-

Given equations are x=2y-----(1)

and x+2y=8------(2)

On Substituting the value of x in the equation (2)

=>2y+2y=8

=>4y=8

=>y=8/4

=>y=2

The value of y=2

On Substituting the value of y in the equation (1)

=>x=2(2)=4

The value of x=4

Answer:-

The value of x=4

The value of y=2

Check:-

x=4=2(2)=2y

and

x+2y=4+2(2)=4+4=8

Verified the given relations .