Substitution Worksheet With Answer Key - Waynesville R-Vi School District Page 5
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
386-2 Substitution
This equation is an identity. So, there are infinitely many solutions.
2x y = 6
3y = 6x + 18
2x y = 6
3y = 6x + 18
First, solve the first equation for y to get 2x
6 = y. Then substitute 2x
6 for y in the second equation.
This equation is an identity. So, there are infinitely many solutions.
The sum of the measures of angles X and Y
X
measure of angle Y.
a. Define the variables, and write equations for this situation.
b. Find the measure of each angle.
a. Let x = m X, and y = m
Y; The sum means to add so the first equation is x + y = 180. Greater than means
addition as well, so the second equation is x = 24 + y.
b. x + y = 180
x = 24 + y
Substitute the second equation into the first equation.
Use the solution for y and either equation to find x.
Page 5
eSolutions Manual - Powered by Cognero
So, m X
m
Y
ADVERTISEMENT
0 votes
Related Articles
Related forms
Point Slope Form And Linear Equations Worksheet With Answers - Algebra 1, Somerset Area School District
Education
Slope-intercept And Point-slope Forms Worksheet With Answer Key - Potomac Falls High School
Education
Scientific Notation Worksheet With Answer Key - North St. Paul-maplewood-oakdale School District
Education
Related Categories
Parent category: Education