Solve the simultaneous equations

3x+y=14

x+2y=3

You can use a bunch of different methods here, but I'll use substitution.

For the second equation, you can bring the 2y to the right side to isolate the x:

x=-2y+3

You can then substitute this into the first equation to find out y:

3x+y=14

3 (-2y+3) + y=14

-6y+9+y=14

-5y=5

y=-1

Now you can plug in y to the second equation to find x:

x=-2y+3

x=-2 (-1) + 3

x=2+3

x=5

Therefore:

x=5

y=-1

I use the substitution method, but you can also use elimination and matrix

1. Solve for y in 3x+y=14

y=14-3x

2. Substitute y=14-3x into x+2y=3

-5x+28=3

3. Solve for x in - 5x+28=3

x=5

4. Substitute x=5 into y=14-3x

y=-1

5. Therefore,

x=5

y=-1

Have a nice day : D