Question 28777
Read the problems backwards it is easier to comprehend it that way.


yellow marbles = x
Green marbles = x+14
Blue marbles = 18+14+x
together:
equation:


x+x+14+18+14+x=112
add like terms:
3x+46=112
3x=66
x=22
22+14=36
32+22=54



Hence, there are 22 yellow marbles, 36 green marbles and 54 blue marbles.
Paul.