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.



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