Finding the Unknown

We've been exploring how we can use algebra tiles to find unknown numbers in linear equations.

So far we've been working with questions in the form of:

Ax + B= C

For example:   5X - 3 = 12

Can you model how you'd solve that problem using tiles.

Below are a list of questions we've been working on in class.  The left side is a little easier.  You should be able to do at least 10 of these questions.  You can finish them all if you need a little more practice.