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Text File  |  1989-07-21  |  432 b   |  14 lines
  1. !How to draw and solve a simultaneous equation of two variables
  2. !  3x + 3y = 31
  3. ! -2x + 5y = 10
  4.  
  5. nw                !Clear and reset
  6. gr                !Draw a grid
  7. li 3,4,31         !Draw the first equation
  8. li -2,5,10        !Draw the second equation
  9. br 0.5,11,22      !Make a background for the text
  10. ik b              !Black
  11. lb 0.5,11, Simultaneous equations
  12. ik y              !Restore yellow
  13. sv 3,4,31,-2,5,10 !Solve
  14.