Question

Solve 4x-3y=11, -7y+5=6x by elimination method.

Answer 1

Answer:

Step-by-step explanation:

4x-3y=11

-6x-7y=-5

Answer 2

Step-by-step explanation:

1. 4x-3y=11........(I)
2. -7y+5=6x
3. -6x-7y=-5........(ii)
4. multiply eq (I) by 3 and (ii) by 2
5. 12x-9y=33.....(iii)
6. -12x-14y=-10....(iv)
7. Adding eq (iii) and (iv) we get
8. -23y=23
9. y=-1
10. put the value of y in eq (I)
11. 4x-3y=11; 4x-3(-1)=11
12. 4x+3=11
13. 4x=11-3
14. 4x=8
15. x=8/4
16. x=2
17. hence y=-1 and x=2