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

\

The equation is $\"\"$ .

\

According to subtraction property of equality: Subtract 2b from each side.

\

$\"\"$

\

$\"\"$ (Apply commutative property of addition: $\"\"$ )

\

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

\

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

\

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

\

According to addition property of equality: Add 4 to each side.

\

$\"\"$ .

\

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

\

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

\

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

\

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

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (divide: $\"\"$ ) $\"\"$

\

Verify:

\

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

\

$\"\"$

\

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

\

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

\

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

\

The value of $\"\"$ .

\