1/3 of a stack of paper and a 1lb book will balance 1/4 of the stack of paper and 3 of the books. How much does the stack weigh?

Question

HELP im absolutely terrible in Algebra 

Answer 1

x=# lbs of the stack of paper

(1/3)x+1=(1/4)x+3

(1/3)x-(1/4)x=3-1

[(4-3)/12]x=2

(1/12)x=2

12(1/12)x=12(2)

x=24 pounds is the weight of the stack

(1/3)24+1=(1/4)24+3

8+1=6+3

9=9