Solve the equation Vx+3+4=5 for the variable. show each step of your solution process

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Find the solution of each of the following.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.