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Write and solve an inequality for the following situation.  

Robert is painting a house. He has cans of paint. He has used cans of paint on the walls. Now he needs to paint the trim. If each section of trim takes can of paint, how many sections of trim can he paint? Show your answer as an inequality with symbols, in words, and with a number line. Make sure that your solution makes sense for this situation.

The total number of cans used must be less than or equal to cans of paint, and only  cans can be used for the trim.

where is the number of sections of trim he can paint.