Question

guillermo bought textbooks and notebooks at the bookstore . the number of textbooks was three more than twice the number of notebook .he hought seven textbooks . how many notebooks did he buy?

Answer 1

2 notebooks

Explanation:

the variables I'm gonna use are t for textbooks and n for notebooks

t = (n•2)+3 (two times the notebooks then add 3)

now we'll plug in the amount of notebooks we have so t=7

7=(n•2)+3

we can subtract 3 from each side that leaves us with

4=n•2

then divide by 2

2=n

Guillermo bought 2 notebooks