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Johanna bought $19$ items at the college bookstore. The items cost a total of $\$ 35.50$. The pens cost $\$ 0.50$ each, the notebooks were $\$ 3.00$ each, and the highlighters cost $\$ 1.50$ each. She bought $2$ more notebooks than highlighters. How many of each item did she buy?$\newline$Use a system of three linear equations to solve the problem.