y=3x+11 y=-2x+1

Question

solve each  system  using  elimination .check  your solution

Answer 1

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