Which expression shows $$ 3 x-7 y-12 y $$ properly combined?

Question

UpStudy AI · Accepted Answer

To properly combine the expression $$ 3x - 7y - 12y $$, follow these steps:

1. **Identify Like Terms:**  
   The terms $$-7y$$ and $$-12y$$ are like terms because they both contain the variable $$ y $$.

2. **Combine the Like Terms:**  
   $$
   -7y - 12y = -(7 + 12)y = -19y
   $$

3. **Write the Simplified Expression:**  
   Replace the combined like terms back into the original expression:
   $$
   3x - 19y
   $$

**Final Combined Expression:**  
$$
3x - 19y
$$
The combined expression is $$ 3x - 19y $$.

Which expression shows properly combined?