Question

Solve the system of equations.





2x + 3y = 13
–6x + 4y = 0

Answer 1

2x + 3y = 13
–6x + 4y = 0
multiply the 1st equation by 3

  6x + 9y = 39
–6x + 4y = 0
------------------add
         13y = 39
             y = 3

–6x + 4y = 0
–6x + 4(3) = 0
  - 6x + 12 = 0
          -6x  = -12
              x = 2
answer
Solution (2, 3) or x = 2; y = 3