$\"\"$

The equation is, $\"\"$ \ \

$\"\"$ (Distributive property)

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

Division property of equality:

Any numbers a, b and c, with $\"\"$ , if $\"\"$ then $\"\"$

$\"\"$ (Divide both sides by 5)

$\"\"$ (Cancel common terms)

$\"\"$

Check:

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

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

$\"\"$

(Multiply: $\"\"$ )

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

$\"\"$

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

$\"\"$

The solution is $\"\"$ .