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

\

The equation is $\"\"$

\

Apply distributive property: a(b-c)=ab-ac

\

$\"\"$

\

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

\

Apply Subtraction property of equality: Subtract d from eachside.

\

\

$\"\"$

\

$\"\"$ (Commutative property:a+b=b+a)

\

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

\

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

\

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

\

$\"\"$ (Add 24 to each side)

\

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

\

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

\

$\"\"$ (Subtarct: $\"\"$ ) $\"\"$

\

$\"\"$ (Divide each side by 3)

\

$\"\"$ (Cancel common terms)

\

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

\

Graph the solution set on a number line $\"\"$

\

Check:

\

To check, substitute 4, in $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$ (Substract : $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

The equlity is true. $\"\"$

\

The equality solution is $\"\"$