Question

solve the equation 3x+y=6 and x-y=2​

Answer 1

Answer:

3x+y=6______(1)

x-y=2______(2)

from equation (1)&(2)

4x=8

x=2

from equation (1)

3×2+y=6

6+y=6

y=0

Answer 2

✴Question:

solve the equation 3x+y=6 and x-y=2

✴Answer:

Let the two equations be named as 1 and 2

3x+y=6 ---------(1)

x-y=2 -------------(2)

Now consider the first equation,

y = 6 - 3x ---------(3)

Substituting eq. 3 in eq 2

x - ( 6- 3x)= 2

x - 6 +3x = 2

4x -6 = 2

4x= 8

=> x = 2

Now we had found the value of x as 2.

Lets use this to find 'y'.

I will take eq. 1

3 (2) + y = 6

6 + y = 6

=> y = 0

Therefore the solution set { 2,0}.

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hope this helps you !