1). y = 2x + 3
2). y= x - 2
set them equal
2x + 3 = x -2 to solve for x
x + 3 = -2 subtract x from both sides of the equal sign
x = -5 subtract 3 from both sides ...
y = x - 2 put in x = -5
y = -5 -2
y = -7 (-5,-7) may be the answer we need to check
put x and y into the first equation
y = 2x + 3 y = x -2
-7 = 2*-5 + 3 -7 = -5 - 2
-7 = -10 + 3 -7 = -7 checks out
-7 = -7 checks out
(-5,-7) is the solution