Making sense in algebraic expressions

Question

Mavrvin had m marbles in a jar.then he added more marbles in the jar and the total numberof marbles became 30.The number of marbles he added to the jar was more than what he had at first.How many more marbles did he add in the jar than what he had at first?

Answer 1

many possabel ansers

all yu hav tu werk with be

1. x+y=30

2. y> 15

we kan sorta assume x>0

if x=1, y=29

that long-winded last part ask for y-x...28 for this zampel

but if x=2, y=28, so anser=26

keep goin