Question

find the value of x and y​

Answer 1

Step-by-step explanation:

3x+y = 7

y=7/3x

putting the value of y in

3x+y =7

3x+7/3x=7 ( lcm =3x)

9x+7/3x =7

9x+7=21x

7=21x-9x

7=12x

7/12 = x

putting the value of x

3x+y =7

3×7/12 +y =7 ( lcm 12)

21+12y/12= 7

21+12y=84

12y= 63

y=63/12

Answer 2

Answer:

3x+y=7

x+3y=13

Step-by-step explanation: