Question

Please answer this simple question !!!

Answer 1

The final answer is (2,1).

Step 1: Solve for either x or y in one of the two equations.

     x + 3y = 5
         - 3y  - 3y
----------------------
     x = -3y + 5
  

Step 2: Substitute the expression you got for x into the opposite equation.

-3y + 5 - 3y = -1
  -6y + 5 = -1
         - 5    - 5
--------------------
  -6y = -6
 ------  -----
  -6       6
 
    y = 1


Step 3: Plug in the solution you got for y into either of the 2 equations.

x + 3(1) = 5
  x + 3 = 5
      - 3  - 3
---------------
  x = 2