Day 2_ Section 6.1 Solving Equations by Uning Inverse Operations.notebook
February 10, 2016
2) x 2
1) 5w ­2 = 30.5
+ 3 = ­4.4
3) Write an equations and solve:
a) six times a number is ­33.6
b) a number divided by ­3 is 45.6
Feb 15­10:32 PM
1) 5w ­2 = 30.5
2) x 2
+ 3 = ­4.4
3) Write an equations and solve:
a) six times a number is ­33.6
b) a number divided by ­3 is 45.6
Feb 15­10:32 PM
1
Day 2_ Section 6.1 Solving Equations by Uning Inverse Operations.notebook
February 10, 2016
Any Questions??? Last Nights Homework
Page 271 ­ 274
# 5(abc), #6(bcd) # 8(a,b,d), #9(ab) , #10(ace),
Feb 15­10:52 PM
Use inverse operations to solve for "x":
3x + 7 = 13
Jan 30­8:36 PM
2
Day 2_ Section 6.1 Solving Equations by Uning Inverse Operations.notebook
February 10, 2016
What trick can we use to remember
how to "undo" 2 or more
mathematical operations???
SAMDEB!!!
But becareful because it doesn't always work ***
***
Let's solve this equation algebraically together
using SAMDEB:
4.5d + 3.2 = 18.5
Jan 30­8:37 PM
Solve for "d"
4.5d + 3.2 = 18.5
Jan 30­8:37 PM
3
Day 2_ Section 6.1 Solving Equations by Uning Inverse Operations.notebook
February 10, 2016
TWO
ways to solve
Solve 3x ­ 1 = 7
2
3x ­ 1 = 7
2
Feb 28­7:56 AM
Solve 4(x­3) = ­10
Feb 28­7:56 AM
4
Day 2_ Section 6.1 Solving Equations by Uning Inverse Operations.notebook
February 10, 2016
7= 2(3x+ 4) Feb 8­3:13 PM
Solve 2
5x + = 1
3
2
5x + = 1
3
Feb 28­7:56 AM
5
Day 2_ Section 6.1 Solving Equations by Uning Inverse Operations.notebook
February 10, 2016
Page 271 ­ 274
Period 1, 2
5(d,e) 6(c,e), 11, 13, 14, 16, Feb 15­10:52 PM
6