Answer
The statement is false.
Modifying the original statement to make it true, you get:
If $3x - 4 = 16$, then $3x = 20$.
Work Step by Step
This statement is false.
The first step to solving this equation would be to add $4$ to each side. The statement is false because $4$ is subtracted from both sides instead.
To get rid of the $-4$ on both sides, you add $4$ to both sides of the equation to get:
$3x = 16 + 4$
Simplify to get:
$3x = 20$