$\"\"$

The equation is $\"\"$ .

According to addition property of equality: If a = b then a + c = b + c.

$\"\"$ (Add 10 to each side.)

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

$\"\"$ (Divide each side by 4)

$\"\"$ (Cancel common factors)

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

Check:

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

$\"\"$

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

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

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

The value of $\"\"$ .