Question

Simplify: 4 open vertical bar 7 minus 9 close vertical bar space plus open vertical bar negative 7 close vertical bar

Answer 1

ok

$\begin{gathered} 4|\text{ 7 - 9 | + |-7|} \\ 4|-2|\text{ + 7} \\ 4(2)\text{ + 7} \\ 8\text{ + 7} \\ 15 \end{gathered}$

Result = 15