I need help with this please help its confusing me.

What does x = in this equation x+3+2x=x+5

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3