How to lose 10, 20, 30 pounds in so many months?

Hey you guys,
I'm HORRIBLE at math. So, when I finally found a website that actually broke down the numbers on how to lose weight, I was pretty thrilled!
My attempt in November to lose a certain amount failed. I ate horrible. But, I'm not discouraged, just disappointed. Time to try it again for December

Anyway, if you ever wanted to lose 10 pounds in 30 days, or 15 pounds in 50 days or whatever, here's the math I hope this helps those who have a problem understanding and just need the nitty gritty broken down:

The facts:
3,500 calories equals 1 pound.

The math:
Let's say you want to lose 10 pounds in 30 days.
If 3,500 calories equals 1 pound and you need to lose 10 pounds you multiply 3,500 by 10. (3,500 x 10 = 35,000)
• You need to burn 35,000 calories in 30 days. How much is that a day? (35,000 ÷ 30 = 1,166)
• You need a 1,166 calorie deficit a day to make your goal
{Note: If you want to lose 15 pounds in 45 days or 22 pounds in 60 days, just replace the numbers.}

Now that you have that number, figure out how many calories you will be taking in for that 30 day period.
Let's say you decided to take in 1,400 calories a day.
The math here is add the deficit (1,166) to your daily calorie intake 1400: so, (1400 + 1166 = 2,566)
• You need to burn 2,566 calories a day to make your goal.

The great news! People burn TONS of calories a day just by breathing, driving a car, etc.

So, what's next?

Figure out your BMR (basal metabolic rate) so you know what you need to really burn through exercise alone.
Let's say your BMR is 1800. Here is what you need to burn through exercise alone...the math: (2566 - 1800 = 766)
• You would need to burn 766 calories a day through exercise of whatever kind in order to lose 10 pounds in 30 days.

Something to remember:
This is only math and calories. This is not taking into account hard core workouts like high intensity interval training. So, if you go on the treadmill and stayed on it until you burned 766 calories (if that was your end number) you'd lose your 10 pounds in 30 days.

*Weightlifting adds muscle and muscle burns even MORE calories

By the way, for those not familiar with BMR or how to find out yours, My Fitness Pal has a calculator:
http://www.myfitnesspal.com/tools/bmr-calculator

Hope this helps! It definitely helped me and made me feel TONS better to know what I just need to do. Now, if only I just get my butt in gear and do it! lol!