Solving linear equations: Here’s what you do
Before getting to learn about how to solve a linear equation, it is vital for you to understand what linear equations really are. Linear equations are basically quite like normal equations, just that they have a variable, such as x, instead of something more intricate like x/y, square roots etc. To be honest, when it comes to writing linear equations and solving them, these are the easiest to do so.
Writing linear equations: How to
To be honest, you have actually written and solved linear equations back when you joined school. Remember getting equations to solve from your teacher when you started learning about addition? For example:
Well, you obviously know right now that you need to fill in 2, but the one thing that you should acknowledge is that solving linear equations isn’t much different too. You basically just need to work out the values of x and at times even y in equations like:
X + y = 180
Solving linear equation word problems
In order to solve linear equation word problems, you basically have to undo whatever actions have already been performed over the variable. See, the thing is that you basically have to isolate the variable. When learning how to solve linear equations, this is one element that you would have to focus on the most. What this is going to results in is an expression like:
*variable* = *number*
Here, this particular ‘number’ is just what you are trying to compute. Here is a basic example of writing linear equations and solving them:
The equation that you need to solve is: x + 6 = -3
In order to solve this particular equation, you basically need to isolate the x. For this purpose, you would need to get the x on the other side of the equals sign along with a number. Now, in order to get the x alone on the other side, you basically need to subtract the 6 that is currently being added to it. Now, the one thing that you need to bear in mind is that whatever you do on one side of the equation needs to be done on the other side too. This means that you would have to subtract it on the other end too. That would make it something like:
X + 6 – 6 = -3 -6
Now, the first -6 is going to cancel out 6, and on the other side of the equation, we need to add the six to three for two counter negative signs. This is going to give us the resultant value of x, which would be:
X = -9
Now, do you have a clear idea as to how do you solve linear equations?
San Francisco, USA
"If you're at school or you just deal with mathematics, you need to use Studygeek.org. This thing is really helpful."
"I will recommend Studygeek to students, who have some chalenges in mathematics. This Site has bunch of great lessons and examples. "
" I'm a geek, and I love this website. It really helped me during my math classes. Check it out) "
"I use Studygeek.org a lot on a daily basis, helping my son with his geometry classes. Also, it has very cool math solver, which makes study process pretty fun"