Solving Linear Equations
- 1. Solving Linear Equations By: Ashley Melendez
- 2. Description on Linear Equations "Linear" equations are equations with just a plain old variable like "x", rather than something more complicated like x2 or x/y or square roots or such. Linear equations are the simplest equations that you'll deal with. You've probably already solved linear equations; you just didn't know it. Back in your early years, when you were learning addition, your teacher probably gave you worksheets to complete that had problems like the following __+3 = 5 As you probably know now the answer is 2, and that is what you would write on the line. Once you'd learned your addition facts well enough, you knew that you had to put a "2" in the box. Solving equations works in much the same way, but now you have to figure out what goes into the x, instead of what goes into the box. However, since you're older now, the equations can be much more complicated, and therefore the methods you'll use to solve the equations will be a bit more advanced. Like they would use x + 6 = -3. Although you might think x would be very hard to find it not you just have to remember to do all the step and check your self as your going along and when your done so that you get the right answer.
- 3. x + 6 = –3 -6 -6 ________ X= -9 What you see here is that I've subtracted 6 from both sides, drawn an "equals" bar underneath both sides, and added down: x plus nothing is x, 6 minus 6 is zero, and –3 plus –6 is –9. Then the solution is x = –9. Example