## chevygirl Group Title and again one year ago one year ago

1. chevygirl Group Title

2. Harkirat Group Title

3. phi Group Title

This is the same problem as before. Just different numbers.

4. chevygirl Group Title

Well if you knew me good enough you would now that I don't learn real easy. It isn't that I am choosing not to learn I just don't get how to do it.

5. skullpatrol Group Title

|dw:1356563774476:dw|

6. skullpatrol Group Title

Multiply both sides by 7.

7. chevygirl Group Title

-35 and -7?

8. skullpatrol Group Title

|dw:1356563975056:dw|

9. chevygirl Group Title

Am I right?

10. skullpatrol Group Title

11. chevygirl Group Title

-30 and -2?

12. skullpatrol Group Title

|dw:1356564176650:dw|

13. phi Group Title

no, when you multiply 7 times (z-5)/7 $\frac{7}{1}\cdot \frac{(z-5)}{7}$ you get $\frac{7(z-5)}{7}$ or $\frac{7}{7}\cdot \frac{(z-5)}{1}$ 7/7 is 1 and (z-5)/1 is (z-5) multiplying by the 7 makes the denominator "go away"

14. chevygirl Group Title

OK????

15. phi Group Title

see skull's first post

16. chevygirl Group Title

17. phi Group Title

you do not get -35 and -7? you get z-5= -7

18. chevygirl Group Title

ok. but never mind

19. skullpatrol Group Title

The answer is {-2} because -2 is the only number that will make z = -2 a true statement.

20. skullpatrol Group Title

-2 = -2

21. chevygirl Group Title

ok but the only reason I am asking these questions is because I dont get how to do them @Harkirat

22. Harkirat Group Title

@chevygirl Well ask your teacher to explain,in detail, how to solve such sums....u cannot go through life asking others to solve them for you......being able to do themselves will boost your confidence...

23. chevygirl Group Title

well if my teachers were here i would ask them but they arent here so I cant AND i got put in a different class because i got behind because i am not good at math

24. skullpatrol Group Title

|dw:1356564567196:dw|

25. chevygirl Group Title

ok. i will try to REMEMBER this

26. skullpatrol Group Title

Would you like me to explain how I solved the original equation?

27. chevygirl Group Title

um no thanks cause i have to do another test

28. skullpatrol Group Title

Is it a math test?

29. chevygirl Group Title

yeah

30. skullpatrol Group Title

If I explain this one you can use the method on most of your other questions.

31. chevygirl Group Title

yeah but i dont know if it is these type of questions or not

32. skullpatrol Group Title

There are a lot of these types of questions in math.

33. skullpatrol Group Title

34. chevygirl Group Title

7

35. skullpatrol Group Title

Do you know what an inverse operation is?

36. chevygirl Group Title

yeah

37. skullpatrol Group Title

inverse operations: Operations that "undo" each other for example multiplication and division.

38. skullpatrol Group Title

If the side containing the variable involves a certain order of operations, apply the inverse operations in the opposite order.