$\"\"$

The expression is $\"\"$

To make the sentence true insert the parenthesis in left side of the statement in different ways.

$\"\"$

Try the expression $\"\"$

Apply the order of operations; first evaluate expression within the parenthesis.

$\"\"$ (Subtract: $\"\"$ )

Next operation is addition from left to right.

$\"\"$ (Add: $\"\"$ )

Compare the values, the statement is not true. $\"\"$

Try the expression $\"\"$

By the order of operations; first evaluate expression within the parenthesis.

$\"\"$ (Add: $\"\"$ )

Next operation is subtraction from left to right.

$\"\"$ (Subtract: $\"\"$ )

Compare the values, the statement is true. $\"\"$

True statement is $\"\"$ .