Math and science, are usually seen as two different types of concepts, each with a unique "style". In science, you mainly learn about the science in the world you live in. Whether it be: geography, chemistry, biology, etc. In math, however, you can begin to make the connections between the two. In math there are a variety of topics; decimals, fractions, graphs, equations, multiplication, addition, subtraction, and division. The number that are often used to measure something scientific, are normally measure to scale, which means it is the exact size, or length. If the object is not to scale, then it means that it is not the direct calculation. Speaking of measuring, we can talk about converting. Scientists use an great amount of measuring tools to measure certain object. If they use centimeters, and they want to  convert to feet, then they use the math to convert the size.

On a  number line, there are two types of numbers that are seperated by the zero. There are the positive, and the negative numbers. The negative numbers are often forgotten, as we normally use positive numbers in simple math, such as second grade adding and subtracting. As you grow older, you can come to see the negative numbers are often used a lot more than the past. Negative numbers, are basically any number that is to the left of the zero. Negative numbers can be depicted and seen in not only mathematical equations, but also in price deductions, and stocks.
   The stocks can either be high rising one day, or negative the other, depending on that company. Not only will you see negative numbers there, but also in other types of sciences, and depicting weather. many weather man can use the negative numbers to tell if the day will be cold, or warm. 

Solving equations is often the first step to any type of a math process. For example, if you were given the equation 2x-7=15, the process is quiet simple. First, you take  line, and draw down the center of the equal sign, so you can tell both sides apart. Then you can begin the process of elimination. Take the -7 part, and do the inverse operation. The inverse of subtracting, is adding, so you would add seven instead of subtracting seven. Then, you add the seven to both sides. The -7, and +7 cancel each other out. You take that over to the other side, and add seven to fifteen, which equals 22. Then you have 2x left.
   Now, you must isolate the x, and by doing so, you do the inverse operation. The inverse operation of multiplication, is division, so you divide 2 by both sides. 2 divided by itself is one, and your 22, on the other side of the equal sign, is going to be 11. Now, you're left with x=11.