y=3x+11 y=-2x+1
solve each system using elimination .check your solution
1) y = 3x + 11
2) y = -2x + 1
Subtract equation 2 from equation 1 to eliminate the y.
y = 3x + 11
-(y = -2x + 1)
-----------------
0 = 5x + 10
5x = -10
x = -2 <<<<<<<<<<<<<<<<<
Plug that into equation 2.
y = -2x + 1
y = -2(-2) + 1
y = 4 + 1
y = 5 <<<<<<<<<<<<<<<<<
Plug both values into equation 1 to check your answers.
y = 3x + 11
5 = 3(-2) + 11
5 = -6 + 11
5 = 5
x = -2, y = 5