Lesson 7: Solving Systems by Substitution (Alg1.2.13)
Math Talk
Here are graphs of two equations in a system.
Select the systems which could be represented by the graphs. Be prepared to explain how you know.
Four Systems
Here are four systems of equations you saw earlier. Solve each system.
Then, check your solutions by substituting them into the original equations to see if the equations are true. A.
B.
C.
D.
Need more practice?
Solve the following the systems of equations by substitution.