Question

(05.02) What is the value of the x variable in the solution to the following system of equations? 4x + 2y = 12 x – y = 3

Answer 1

3 is the x variable :)

Answer 2

Answer:  6

Step-by-step explanation:

The given system of equations :

$4x + 2y = 12......(1)\\\\ x -y = 3.....................(2)$

Multiplying 2 to the both sides of equation (2)

$2x-2y=6.............(3)$      

Now, Add equation (1) and equation (3), we get

$6x=18\\\\\rightarrow\ x=\dfrac{18}{3}=6$

Put x=6 in (2), we get

$6-y=3\\\\\Rightarrow\ y=6-3=3$

Hence, the value of the x variable in the solution to the following system of equations =6