Question

y=3x and x+2y=7 elimination method ​

Answer 1

Answer:

x=1

Step-by-step explanation:

putting the value of your in x+2y=7 we get :

x+2×3x=7

x+6x=7

7x=7

x=1

Answer 2

Answer:  1

Step-by-step explanation: Given y= 3x

i.e x+2 X 3x = 7

  x + 6x = 7

 7x = 7

( Transposing 7 to RHS )

We get, x=7/7

  x=1