Sewanhaka High School
Principal
Math 8
Name:___________________________________ Per:___
Date:_________________
Mrs. Lidowsky,
Mr. Long, Teacher
H.W. #15: Ditto
DO-NOW #15: Answer the following questions. SHOW WORK.
1) Solve and Check the following equations
a) s + 6 = 40
b) 3m = 15
4) Answer the following question. Show work.
Topic: Expressions and Equations
Main Idea: Solving Equations with variables on both sides
Aim:
RECALL
NOTES
I’m thinking of a number. If you add four to
my number, then double the sum, the result is
20. What is my number? Translate the verbal
sentence into an equation, solve and check.
5 times a number increased by three is equal
to three times that number increased by 7.
What is my number?
Solve and Check: 3(y + 5) = 2(2y + 1)
In general, how do we solve and check
equations of any type?
c)
d
2
7
Recall
Notes
Drill: Solve and Check
1) 5a + 14 = 7a + 8
2) 4(2b – 1) = 20
3) 3(2x – 4) = 2x + 8
4) Answer the following question. Show work.
Summary:
If time: Solve and Check
1) 4d – 7 = 2d + 15
2) 8b – 3 = 1 + 10b
3) 2e – 14 = 3e – 5
4) 5f – 17 = 4f + 36
5) 4(d – 7) = 2d + 16
6) 8b + 3 = 1 + 10b
7) 2e – 4 = 3e – 5
8) 5f – 12 = 4f + 4
9) 4(2b – 1) = 4b + 24
10) 21k – 500 = 73k – 32