2/3(x+12)+2/3x=4 how do you solve the equation?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)