IDNLearn.com makes it easy to find the right answers to your questions. Get step-by-step guidance for all your technical questions from our knowledgeable community members.

3x + y = 15
5x - y = 9


Sagot :

3x + y = 15
5x - y = 9  
     8x = 24
      8      8
       x = 3
3(3) + y = 15
    9 + y = 15
  - 9         - 9
          y = 6
(x, y) = (3, 6)