$\"\"$

The equation is $\"\"$ .

(Apply subtraction property of equality: If a = b, then $\"\"$ )

$\"\"$ (Subtract 2.8 from each side)

$\"\"$ (Apply additive inverse property: $\"\"$ )

$\"\"$ (Apply additive identity property: $\"\"$ )

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

Check:

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

$\"\"$

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

The equality is true. $\"\"$

The value of $\"\"$ .