1) The document discusses using algebra tiles to model and solve two-step equations. 2) It provides an example of modeling and solving the equation 2y + 4 = 10 using algebra tiles. 3) The key steps are to first group like terms on each side, then remove common terms from both sides to simplify the equation before solving for the variable.

1. Modeling and Solving 2-
operation Equations
You can use algebra tiles to solve
equations.
= variable =1
= -1

2. 2y + 4 = 10
Should I put things into groups first or should I try
to simplify the scales by removing like items from
each side?

3. 2y + 2y = 10
4 =6
Remove the four squares from each side to simplify
the equation!

4. 2y = 6; separate your variables
y=3
and split up the ones so that
each variable has the same
amount

5. Model and solve.
4x + 2 = -10

6. Solve – show your steps!
4x - 10 = 34 -3n + 15 = 60

7. Solve – show all steps!
n n
12 5 8 10
5 6