At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

2x-3y=4
-4x+6y=-8.
solve by elimination


Sagot :

naǫ
[tex]2x-3y=4 \\ -4x+6y=-8 \ \ \ |\div 2 \\ \\ 2x-3y=4 \\ \underline{-2x+3y=-4} \\ 2x-2x-3y+3y=4-4 \\ 0=0 \\ \\ \boxed{\hbox{infinitely many solutions}}[/tex]
  2x - 3y = 4   ⇒ -4x + 6y = -8
-4x + 6y = -8 ⇒ -4x + 6y = -8
                                    0y = 0
                                    0      0
                                      y = 0
                           2x - 3(0) = 4
                               2x - 0 = 4
                                    +0   +0
                                     2x = 4
                                     2      2
                                      x = 2
                                (x, y) = (2, 0)