$\"\"$

The equation is $\"\"$ .

Combine like terms using distributive property: $\"\"$ .

$\"\"$

$\"\"$ (Add: 4 + 3 = 7) $\"\"$

Apply division property of equality: If a = b then $\"\"$ .

$\"\"$ (Divide each side by 7)

$\"\"$ (Cancel common terms)

$\"\"$ (Divide: $\"\"$ ) $\"\"$

Check:

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

$\"\"$

42 = 42 (Multiply: 7 $\"\"$ 6 = 42)

The statement is true. $\"\"$

The value of $\"\"$ .