(54+х)*3

To simplify the expression \((54 + x) * 3\), you can distribute the 3 to both terms inside the parentheses:

\[ (54 + x) * 3 = 54 * 3 + x * 3 \]

Calculating each term gives:

\[ 54 * 3 = 162 \] \[ x * 3 = 3x \]

Therefore, the simplified expression is:

\[ 162 + 3x \]