$\"\"$

\

The equaion is $\"\"$ .

\

$\"\"$ (Multiply each side by 5)

\

$\"\"$ (Cancel common terms)

\

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

\

$\"\"$

\

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

\

$\"\"$ (Add 2 to each side).

\

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

\

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

\

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

\

$\"\"$ (Simplify)

\

$\"\"$

\

Check:

\

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

\

$\"\"$

\

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

\

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

\

$\"\"$ (Multiply with multiple inverse)

\

$\"\"$

\

Compare the values, the equation is true.

\

$\"\"$

\

The value of $\"\"$ .