Question

Solve the following pair of linear equations by the substitution method 3x-u=3……. 9x-3y=9…..

Answer 1

Answer:

Step-by-step explanation:

Answer 2

I think there is something wrong in the question, there is y instead of u there.

Plz check the question and if there is y then the solution will be :

3x-y=3

Then, 3x-3=y

9x-3y=9

=> 3y=9x-9

=> 3y=3(3x-3)

=> 3y=3y

=> y=3y/3

=> y/y=3/3

=> y=1

Then, 3x-3=y

=> 3x= y+3

=> x= y+3/3

=> x= 1+3/3

=> x=4/3 Ans.