## Introductory Algebra for College Students (7th Edition)

The statement is false. Modifying the original statement to make it true, you get: If $3x - 4 = 16$, then $3x = 20$.
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: $3x = 20$