Eureka Lesson 19

Objective

Solve addition and subtraction equations by using tape diagrams and algebraic reasoning.

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Lesson 19: Solving Equations with Addition and Subtraction

We will find the value of the variable by using our knowledge of addition and subtraction.

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​We are going to solve addition and subtraction equations by using algebraic reasoning and tape diagrams

​We know that if you add 8 to f you get 17.

Audio Response

There is a new superhero that is a chipmunk. What is its superpower?

Open Audio Recorder

Multiple Choice

What is the solution to the equation k - 7 = 5 when solved algebraically?

• k = 5

• k = 2

• k = 12

• k = 10

Multiple Choice

If the measure of angle α and 138 degrees add up to 180 degrees, what is the measure of angle α?

• 42 degrees

• 48 degrees

• 52 degrees

• 138 degrees

Multiple Choice

What is the solution to the equation w + 8 = 22?

• A) 14

• B) 22

• C) 30

• D) 34

Draw

Add stuff

Multiple Choice

If c - 18 = 20, what is the value of c?

• A) 2

• B) 18

• C) 38

• D) 40

Multiple Choice

Solve the equation 12 + h = 19 for h.

• A) 7

• B) 12

• C) 19

• D) 31

Multiple Choice

Find the value of b in the equation 24 = b - 5.

• A) 19

• B) 24

• C) 29

• D) 34

Multiple Choice

What is the value of y in the equation 5.6 = y + 1.1?

• A) 4.5

• B) 5.6

• C) 6.7

• D) 7.2

Multiple Choice

If m - 6.2 = 7, what is m?

• A) 0.8

• B) 1.2

• C) 13.2

• D) 14.2

Multiple Choice

What is the solution for p in the equation p + 1 1/4 = 5?

• A) 2 3/4

• B) 3 3/4

• C) 4

• D) 5

Math Response

Solve the equation.

$$-5-8x=27$$

Type answer here

Correct Answer: -4

Deg^°

Rad

Dropdown

To isolate the variable, first you ​

Select answer

Then you​

Select answer

Poll

How well do you feel you understand how to solve addition and subtraction equations?