Upload
ilene-weaver
View
214
Download
0
Embed Size (px)
DESCRIPTION
Example… Although it seems easy… be sure to keep your equation balanced and always show that work! x + 3 = X = - 7
Citation preview
4 -2Solving Addition and Subtraction
Equations (pgs 156 - 159)
Standard: Patterns, Functions and Algebra
Indicators: P9: Recognize a variety of uses for variables; represent the equation-solving process
Important Steps to Remember! • Your goal for every
equation…
• Use the… – (or opposite operation)
• Keep the equation…
• Show every…
• To Isolate the variable
• Inverse operation
• Balanced
• Step!
Example…• Although it seems easy… be sure
to keep your equation balanced and always show that work!
x + 3 = - 4 -3 - 3
X = - 7
More Examples1) w - 4.6 = -10.3 +4.6 + 4.6 w = - 5.7
2) y + 3/4 = 5/8 - 3/4 -3/4 y = -1/8
(-6/8)
Homework
4-2Pg. 158-159# 4-10 All#12-28 Even#41-42