the point at which a company's cost equals its revenue is the break-even point.

the point at which a company's cost equals its revenue is the break-even point. C represents the cost, in dollars, of X units of a product and R represents the revenue, in dollars, from the sale of X units. Find the number of units that must be produced and sold in order to break even. That is, find the value of X for which C=R, C=14x+48,000 and R=18x