SOLUTION: |2c+5|=21

Algebra.Com
Question 554746: |2c+5|=21

Found 2 solutions by jim_thompson5910, modernfish:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given equation


Break up the absolute value (remember, if you have , then or )

or Set the expression equal to the original value 21 and it's opposite -21




Now lets focus on the first equation


Subtract 5 from both sides


Combine like terms on the right side


Divide both sides by 2 to isolate c



Divide







Now lets focus on the second equation



Subtract 5 from both sides


Combine like terms on the right side


Divide both sides by 2 to isolate c



Divide





So the solutions to are:

or


If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim

Answer by modernfish(1)   (Show Source): You can put this solution on YOUR website!
|2c+5|=21
-2 -2
c+3=21

RELATED QUESTIONS

simplify completly... (answered by Fombitz)
3(4a-2c)-5(3a-2c) (answered by sofiyac)
-5+2c=6c+11 (answered by mukhopadhyay)
-11<-2c+3<-5 (answered by funmath)
2c^2+11c+5 (answered by unlockmath)
7(2c-5)+7 (answered by jim_thompson5910)
7(2c-5)=7 (answered by jim_thompson5910)
2c-5=c+4 (answered by ReadingBoosters)
|2c -... (answered by ReadingBoosters)