Question

What is the solution to the system of equations?

y = x + 3

x = –2

Answer 1

You solve the system using substitution:
Since x=-2, you can substitute -2 in for x in the top equation:
y=-2+3
y=1

Now that you know the values of both x and y, you write the answer as a coordinate, with x before y in parentheses:
(-2,1)