[tex] |a|=a\ \text{if}\ a > 0\\\text{Examples:}\\|19|=19;\ |1,000|=1,000\\\\|a|=-a\ \text{if}\ a < 0\\\text{Examples:}\\|-3|=-(-3)=3;\ |-254|=-(-254)=254\\\\|0|=0\\\\\text{Answer to your question:}\\\\|6|=6 [/tex]
