1. what is the anwer 5x+3y=12 And x-4y=7
2. what is the anwer 6x+2y=-12 And 4x3y=7
3. what is the anwer 4x-6y=26 And 5x-4y=8
4.what is the answer 5x+3y=13 And -7x-8y=16
5. what is the anwer x+y=19 And 3x+-2y=-3
6. what is the answer 3x+8y=-4 And 2x-4x=16