$\"\"$ $\"\"$

The expression is $\"\"$ .

$\"\"$ (Distribute -7 and 5)

$\"\"$ (Product of two same signs is positive) $\"\"$

Apply commutative property of addition a + b = b + a.

$\"\"$

$\"\"$ (Apply distributive property: ab + ac = a(b + c))

$\"\"$ (Add: 7 + 5 = 12) $\"\"$

The value of expression is $\"\"$ .