Question

I have x marbles. My elder brother has 3 more than mine, while my younger brother has 3 less than mine. If the total number of marbles is 15, then the number of marbles that i have is

Answer 1

Answer:

you have 5 marbels

Step-by-step explanation:

let your marbels be x

then ,

• the number of marbels your elder brother has = x+3
• the number of marbels your younger brother has = x- 3

Total number of marbels = 15

so,

x + ( x+3) + (x-3) = 15

3x =15

x = 15/3

x = 5