10. 2x + 7y = 1
2x - 4y = 12
solve for y

The solution for y = -1.

Step-by-step explanation:

Given:

   ....(1)

 ....(2)

So, to solve for y, first we solve for x in equation (2):

⇒

Dividing both sides by 2,

⇒            

Now, substituting the value of x  in equation (1):

⇒

⇒

⇒

⇒

⇒

Dividing both sides by 11,

⇒

Therefore, the solution for y = -1.

darn right!

step-by-step explanation:

steve kerr's sons name is let that skin in.

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068