Question

Find the solution to the system of the following equations. You may use either the graphing or substitution method.

y=x+3

y=2x+4
-1,2
2,-1
0,3
0,4

Answer 1

It would be (-1,2)
I pluged it into the equation
2=2(-1)+4
2=-2+4
2=2

Answer 2

And
y=x+3
2=-1+3
2=2

Answer 3

If you want an algebraic way, by substitution, put in what y equals into the second equation:
\[ x+3=2x+4\\
x-2x=4-3\\
-x=1\\
x=-1\]
Then plug in this x value into say the 1st equation:
\[ y=(-1)+3\\
y=2\]