Your answer would be D. I have just recently learned this and I am pretty good at it if you need more help! Here is the explanation for why this answer is how it is! I hope this helps you! =)
3 - 7x = D) The difference between three and seven times a number.
This expression is known because the words times and difference are your key words. Times means multiplication and difference means subtraction. So, now you need to combine all of these expressions and meanings together to form your overall equation. In addition, you will be able to answer anything of the sort!
Equation = 3 - 7x.
I got faith in you mate! You got this math! It is a slice of cake! Haha! =)
~Einar Selvik (Kaylee)
