Consider the system of equations 2x + y = 11 and 4x – y = 25. What is the value of the x-coordinate of its solution?

Answer :

Answer:

[tex]2x + y = 11 - - - (a) \\ 4x - y = 25 - - - (b) \\ (a) + (b) : \\ 6x + 0y = 36 \\ 6x = 36 \\ x = 6[/tex]