please help me with this..

Algebra
Tutor: None Selected Time limit: 1 Day

2b-5=8b+1, 8x-2=3x+12.25, -17-2x=6-x, 2(x+4)=3(x-2), 6(x+7)-20=6x, -2(x+2)=-2x+1

Sep 2nd, 2015

Thank you for the opportunity to help you with your question!

1.

2b-5=8b+1

2b-5+5=8b+1+5

2b=8b+6

2b-8b=8b-8b+6

-6b=6

b=-1

2.

8x-2=3x+12.25

8x-3x=12.25+2

5x= 14.25

x=14.25/5

x=2.85

3.

-17-2x=6-x
-17-6=-x+2x
-23=x
x=-23

4.

2(x+4)=3(x-2)

2x+8=3x-6

6+8=3x-2x

14=x

x=14

5.

6(x+7)-20=6x

6x+42-20 =6x

6x+22=6x

6x-6x=-22

0=-22

Therefore this is invalid, and there is no solution.

6.

-2(x+2)=-2x+1

-2x-4=-2x+1

-2x+2x=4+1

0=5

We arrive at the same problem as number five, there is no solution.

**Make sure you wrote numbers 5, 6 correctly**

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 2nd, 2015

  • which ones had no solution?

Sep 3rd, 2015

  • which ones had no solution?

Sep 3rd, 2015

Problems 5 and 6

Sep 3rd, 2015

oh okay... thank you

Sep 3rd, 2015

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
Sep 2nd, 2015
...
Sep 2nd, 2015
Dec 8th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer