Algebra 1 - Mr. Coffey
www.usd443.org/webpages/jcoffey
Class: Algebra 1
Learning The scholar will demonstrate the
ability to solve special cases of
Goal:
systems of equations using the
substitution method by
completing independent practice.
Questions/
Main Idea
3x - 3y = -30
y = x + 10
2x - 2y = 5
y=x+3
y = 5x + 15
10x - 2y = -30
Summary:
Name:
Day: 13
Block:
Vocabulary:
Notes:
Algebra 1 - Mr. Coffey
www.usd443.org/webpages/jcoffey
QUESTIONS:
NOTES:
When you use substitution, you could find a __________________
for both _______ and _______.
Types of
Solutions
when
Solving Systems
using
SUBSTITUTION
If this happens, your system has _____ solution!!
After you substitute, your variables could _______________ out, and
you might be left with a _______________ statement.
If this happens, your system has _______________ solutions!!
After you substitute, your variables could _______________ out, and
you might be left with a _______________ statement.
If this happens, your system has _______________ solutions!!
y = 2x + 8
-4x + 2y = 7
y = 5x + 2
15x - 3y = -6
-3x + 3y = -6
y=x-6
Summary: