Thanks so much for taking the time out.

Have a gr8 wkend.

S

I got all the answers for the 1st set of problems excepting problem 12. The answer i am getting is x = -2 and y = 1.

Can you please let me know where i am wrong.

-3x-2y=4

x+7y=5 (multiply with 3)

=3x+21y=15 (cancel -3x and +3x)

19y = 19 (remains

y = 19/19

y = 1

x+7=5

x = 5-7

x = -2

Thanks so much

S

Andy decides to do yet another trip on the escalator. Just as he gets on the escalator, Ronald starts walking up the same escalator from the bottom.

Solve all the values of the pronumerals for all of the pronumerals. Leave answers in improper fractions:

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

32.

33.

34.

35.

36.

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