92.0k views
22 votes
Alice's age is 5 years less than 4 times her brother's age. Alice's age is 15 minus her brother's age. How old is Alice?​

User Mozes Ong
by
4.8k points

2 Answers

3 votes

Answer:

Alice is 6 1/9

Explanation:

a is Alice and b is brother

a=4b-5

a=b-15

I prefer to use elimination

a=4b-5

-a=-b15

-3b=10

b=-10/3

a=4(10/3)-5

a=-55/3

User Cvbattum
by
5.6k points
9 votes
6 1:9 oohgbsjdjjejnx
User Hsivonen
by
4.9k points