Note:<\/strong> Star, written as an x<\/em> with a crossbar through it, Once students have learned the algebraic concepts using the star notation and the white pawn, they are then ready to transfer their learning and make sense of examples such as 2x<\/em>\u00a0+ (-x<\/em>) + 3 = 2(-x)\u00a0<\/em>+ 12 and 2x<\/em>\u00a0\u2013 (-x<\/em>) = 15.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\nx<\/em><\/del>,\u00a0<\/em>is a new mathematical notation developed by Dr. Borenson for the opposite of\u00a0x<\/em>. It is a more compact symbol than the traditional notation, (-x<\/em>).<\/p>\n