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, the number of marbles that I have is 1. 3 2. 5 3. 8 4. 7

Answer 1

Step-by-step explanation:

I have marbles =x

my elder brother have marbles=x+3

my younger brother have marbles=x-3

total marbles =15

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

3x=15

x=15/3

x=5

so that I have the number of marbles is (5)