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How To Use Algebra To Plan Your Future

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By : Ann Knapp    99 or more times read
Submitted 0000-00-00 00:00:00
Algebra represents some peoples' fondest memories of high school - and for others, it goes down in personal history as the one activity that tuned them out on math forever. But algebra offers instant help with an issue nearly everyone needs to think about - personal finances. For an example, let's use algebra to figure the age at which you should begin withdrawing Social Security.

Social security remains a popular - yet always-controversial - government program. When President Franklin Delano Roosevelt created it during the Great Depression, critics accused him of moving the country toward socialism. Today, though it remains a surefire issue with voters, it's also perennially up for reform. Policy experts propose abolishing it, turning part of it over to private investment, raising the retirement age required to collect it, reducing some Americans' eligibility for it, or simply leaving it alone.

But in any case, despite gloomy predictions of a few years ago, it looks like Social Security will be around for awhile. That means most of us need to think about when to start collecting benefits - age 62 or 66.

After all, according to current law, you (or your grandpa) will be eligible for benefits by the age of sixty-two. But that monthly check will get bigger if you wait until age sixty-six to start withdrawing from the system to which you've been contributing during your entire working life. Perhaps, thinking of your grandchildren, you'd like to know how long you'll have to live to make it more profitable to wait until age sixty-six to start taking payments. (For much of this information, by the way, the author is indebted to the PUMAS [Practical Uses of Math and Science] home page, maintained by NASA and the California Institute of Technology.)

If you've been studying your algebra, however, you can figure this problem simply. If you begin collecting social security at age sixty-two, the amount you can draw will be reduced by twenty percent (20%). So simply turn the problem into an equation. Let a represent your age and b your social security income per year. If you retire at age sixty-two, because of that twenty percent penalty, your total earnings in any given year can be represented like this: 0.8b (a-62). (By the way, if you've already forgotten your algebra, simply remember that 0.8b is another way of saying 0.8 times; putting the whole shebang next to another number in parentheses - as we've done here - simply means that you multiply the number within the parentheses by the 0.8b.)

Why the 0.8 times b? Because, given that twenty percent penalty, you'll get only eighty percent of b (100%-20%=80%), and 0.8 times any number yields eighty percent of that number. So, if you begin withdrawing at age sixty-two, it's 0.8b (a-62), with a indicating, again, your age.

Meanwhile, if you wait until age sixty-six to begin drawing your benefits, your equation looks like this: b(a-65). In other words, b times your age minus sixty-five.

So, to find out at what age things even out - the age that, if you live past it, it becomes more profitable to start withdrawing social security money at age sixty-five - you posit that these two equations are equal to each other, and you solve from there:
0.8b(a-62) = b(a-65)

Anyone who remembers middle-school algebra knows the first step to take: simplify the equation by dividing y from both sides. That gives us 0.8(a-62) = a-65.
If we then solve for a, we find ourselves with the solution 77. In other words, if you (or grandpa) think you can live past age seventy-seven, then at that point the earnings you get by waiting until you're sixty-five surpass the earnings you'd get by beginning at sixty-two. So you're better off waiting until you're sixty-five to begin withdrawing that social security money.

But these equations aren't just useful for people who are figuring their future social security income. Algebra is useful for young children whose parents may decide to apply the same delayed-gratification logic to their allowances. Let's say that your parents decide that you can have twenty dollars a week now - or thirty dollars a week if you can wait until a year from now, while the money they would've given you sits in a savings account. Do the math!
Author Resource:- Math Made Easy provides Math help for Algebra help, Geometry help, math homework help using math online tutorial services and math tutorial cd so you can watch your math scores soar.
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