http://www.youtube.com/watch?v=TGcWE2O2a_0&feature=share&list=UUkgJ5xh-IfCExqUhTePjwDQ

here is an algebraic equation: 2x+5=13

the first step your going to do is to isolate the variable canceling he constant which would look like this

2x+5-5=13-5

because we've added -5

to the left we need o add -5 to the right balance

Once you have balanced both sides you will divide both sides by 2 which

look like this

2x=8

2 2

Then you cancel the twos your left of with x then you divide

8 and 2 then you get x=4

now you verify by using the original equation

2x+5=13

Then substitute the value of x which is 4

SO

now

2(4)+5=13

8+5=13

13=13

now, I know that my answer is right because

they are balance

## Thursday, March 21, 2013

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