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

\

\

The equation is $\"\"$

\

\

Subtraction property of equality: If a = b then $\"\"$ .

\

$\"\"$ (Subtract 3 from each side)

\

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

\

\

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

\

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

\

$\"\"$ (Divide each side by negative 10)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Division of two same signs is positive)

\

$\"\"$

\

$\"\"$

\

Check:

\

Substitutive the value $\"\"$ on original equation

\

$\"\"$

\

$\"\"$ (Cancel common terms)

\

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

\

The equation is true. \ \ $\"\"$

\

The solution $\"\"$ .

\