Multi-step equations

label Mathematics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

The problem on my homework is, Joel has twice as many CDs as Mariella. Subtracting 7 from the number of CDs Joel has and dividing by 3 equals the number of CDs Blake has. If Blake has 25 CDs, how many CDs does Mariella have? Can anyone on here please help me?

Jun 1st, 2015

let number of CDs Marilla has be x

so Joel =2x

and Blake=(2x-7)/3=25

solve for x using above equation

2x-7=75

so 2x=68

x=34

hence marilla has 34 CDs

Jun 1st, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Jun 1st, 2015
...
Jun 1st, 2015
Jun 22nd, 2017
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