Answer:
-12x + 28
Explanation:
To do this question we have to expand the brackets and collect like terms
1) Expand brackets
- -4 (3x - 7)
- -4 × 3x = -12x
- -4 × -7 = 28
- -12x + 28
2) Collect like terms
- There are no like terms in the final answer so it must still be the same
TOP TIP:
Be careful with the operations for example if we were to say that -4 × -7 = -28 our answer would be wrong!
The rules for the operations is that if a - and a + are multiplied the answer will always be -.
If the operations are a - and - the answer will always be +