$\"\"$

The word “increased” indicates the symbol “ + ”.

Let n represents the number.

Rewrite the sentence into equation, \ \

$\"\"$

The equation is $\"\"$

$\"\"$ (Product of two different signs is negative) $\"\"$

According to addition property of equality: if a = b, then a + c = b + c. \ \

$\"\"$ (Add 16 to each side)

$\"\"$ (Additive inverse property: $\"\"$ )

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

$\"\"$

Check:

To check the solution, substitute $\"\"$ in original equation.

$\"\"$

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

Compare the values, the equation is true. The solution is $\"\"$ .

$\"\"$

The number is $\"\"$ .