How do I solve two step equations?

Question

I am very confused with this problem, I do not know how to solve them 

2k+16=4k

 

there are many others like this, and I really need to know how to solve them :)

Answer 1

You first need to get the variable (k) on just one side. You can do this by subtracting 2k from both sides.

 

2k + 16 = 4k

-2k          -2k

16 = 2k

 

Now, you should be able to just divide both sides by 2 to get 8 = k (or k = 8, if that works better for you).

 

You can check your work by filling in 8 wherever you see k in the original problem.

 

2(8) + 16 = 4(8)

16    + 16 = 32