Common Core
A-REI.C.6
8 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Algebra 1 · Chapter 5 · Lesson 1
Two ways to remove a variable.
Algebra 1 · Chapter 5 · Lesson 2
The crossing point is the answer.
Integrated Math 1 · Chapter 3 · Lesson 1
Solving Systems by Graphing and Substitution
Where two conditions meet.
Integrated Math 1 · Chapter 3 · Lesson 2
Solving Systems by Elimination
Add the equations and lose a variable.
Integrated Math 3 · Chapter 8 · Lesson 3
When one rule does not cover everything.
Linear Algebra · Chapter 2 · Lesson 1
Systems and Augmented Matrices
Strip away the letters and keep the numbers.
Linear Algebra · Chapter 2 · Lesson 2
Clear out entries until the answer is obvious.
Linear Algebra · Chapter 2 · Lesson 3
Exactly one, none at all, or infinitely many.