Sunday

March 29, 2015

March 29, 2015

Posted by **Veronica** on Wednesday, February 25, 2009 at 9:19pm.

7x + 4y = 17

Answer: (3,1)

2) -3x + 5y = -7

9x + 2y = 38

Answer: (4,1)

3) 7r + 3s = 13

14r - 15s = -16

Answer: (1,2)

4) 2x - 7y = 42

4x - 14y = 64

Answer: No Solution ??

5) 9x + 12y = 15

3x + 4y = 5

Answer: Identity ??

6) 2 = 4s - 3t

2 = 12s - 9t

Answer: No Solution ??

7) 3a - 6b = 18

4a + 8b = 24

Answer: (6,0)

If I got any of these wrong, can someone please show me the right way to do them?

These I have no idea on how to do them.

8) 4x +8y = 5

5x +10y = 13

9) 13 = 8a - 8b

6 = 4a - 5b

10) 160 = 2x - 10y

120 = 3x - 15y

Can anyone show me how to do these ones, I keep trying to solve them, but keep getting the wrong answer?

- not please help--math -
**DrBob222**, Wednesday, February 25, 2009 at 9:23pmmath help needed.

- Veronica or Lily ? -
**Reiny**, Wednesday, February 25, 2009 at 9:50pmThere may not be tutors available for your subject and question at all times.

Have patience.

You posted this again about 1/2 hour after your first post of this question

You have to keep checking back to see if your received an answer, sometimes it might take over an hour or even more.

I gave you an answer in

http://www.jiskha.com/display.cgi?id=1235612870

I did not answer your first part, because all you have to do is check if your answers work in both of the two equations.

**Answer this Question**

**Related Questions**

8th Grade Algebra: Answer Check - Find the length of the 3rd side of each right ...

8th Grade Algebra: Answer Check #2 - Add or Subtract (Radicals) { this means ...

8th Grade Algebra-Radicals:Answer Check - Write each expression in simplest form...

Science - Maps and Computers - Please Check - Please help me with the following...

Social Studies - PLEASE ANSWER! PLEASE ANSWER! PLEASE ANSWER! Identify two ...

Health - What are the short term effects of Cocaine: When someone consumes this ...

Math 8R: Homework Check - Part 2 - Part 2: Simplify by combining like terms and...

Earth Science - Please Check My Answer - Please help me with the following ...

Social Studies - PLEASE ANSWER! PLEASE ANSWER! PLEASE ANSWER! 1) Identify two ...

Math (Algebra) - Can someone please check my answer? 9[73-(-95-61)]= 2061 if my ...