como deben ser los exponentes de las incognitas en una expresion algebraica para ser considerada polinomio

For what value of x does 4x = (1/8) x + 5?

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

5/6+7/8what is the answer sealsdbdbshd