420-8<12

To solve the inequality \(420 - 8 < 12\), we first simplify the left side:

\[ 420 - 8 = 412 \]

Now, we can substitute it back into the inequality:

\[ 412 < 12 \]

This statement is false, as \(412\) is greater than \(12\). Therefore, the inequality \(420 - 8 < 12\) is not true.