Question

If 2x + y = 12 and 3x-y=13, find the value of x​

Answer 1

Answer:

X=5

Step-by-step explanation:

2X+Y=12

3X-Y=13

Add eq 1 and 2

after that we get 5x=25

x=5

Answer 2

Given,

• 2x + y = 12
• 3x -y = 13

To find,

• We have to find the value of x.

Solution,

We can simply find the value of x by solving the linear equations in two variables.

  The given equations are 2x + y = 12    (1)  

                                             3x -y = 13      (2)

By adding (1) and (2), we get

when we add (1) and (2), the variable y gets cancelled and we get

                                            5x  = 25

                                              x  = 25/5

                                             x  = 5

Hence, if 2x + y = 12 and 3x-y=13, then the value of x is 5.