Answered

Lauren brings brownies to class one day. She gives 3/5 of them to her friends Gareth Tammy and Camilla. If she gave them 21 brownies, how many did she bring to class?



PLEASE HELP ME!!!!



Answer :

3/5 x=21    /*5
3x= 105
x= 35
She brought 35

Answer to comment:
1/7(14x+7)-5=6   /*7
14x+7-35=42
14x=42-7+35
14x= 70   /:14
x= 5