What is the result of adding the system of equations? 2x + y = 4 3x - y = 6

Question

What is the result of adding the system of equations?  2x + y = 4 3x - y = 6

anonymous · Answer

You can substitute the y in.
2x+y=4
3x-y=6

Is that how it is set up on your example

anonymous · Answer

If so, subtract 2x on both sides and get "y" by itself

y=4-2x                   Then substitute where "y" is

3x-(4-2x)=6           Distribute the negative sign, and combine like terms

3x-4+2x=6
5x-4=6
                               Add 4 to the right side to get "x" by itself, then divide 5
5x=10
5x=10/5

x=2                        Answer!