Lesson #2 Systems of Equations

  • the solution the systems of equations on the graph is the point in the shaded region, NOT dotted line

Example

The solution to the given systems of equations is (x,y). What is the value of x+y?

4x=20 and -3x+y=-7

  • plug 2 equations into desmos

    • 4x=20

    • -3x+y=-7

  • look at the point of intersection (5,8)

  • add 5+8=13

  • the answer is 13