Solving Systems of Equations

Solving Systems of Equations

Are You Ready??

Today, our goal is to get a little better at solving systems of equations using:

• elimination

• substitution

Poll

Which method would you use to solve this system of equations?

x = -5

2x + 3y = 10

• elimination

• substitution

• Undecided

Poll

How confident are you in solving systems of equations?

• Great

• OK

• Meh

Multiple Choice

Solve by substitution:

x = -2

x + 3y = 4

• (2,2)

• (-2,2)

• (-3, 3)

Multiple Choice

Solve by elimination:

x - y = 11

2x + y = 19

• (10, -1)

• (-10, 1)

• (-1, 10)

Error Analysis: What did this student do wrong?