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

The expression is $\"\"$ .

Whether the equation is true or not

$\"\"$

According to Multiplication property of equality: if $\"\"$ , then $\"\"$ .

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

$\"\"$ (Cancel common terms)

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

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

$\"\"$ (Add 4 to each side)

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

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

The equation is true.