Flashcard 5 - Math Flashcard Set for the PSAT/NMSQT Exam

+5 and -5

Many questions in the PSAT will not ask for the value of x. Instead, you may be asked for the value of an expression. In equations like this, always remember this property:

\[\vert u \vert = a\]

is just another way of saying:

\[u = \pm a\]