3.4 balance method

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WiskundeMiddelbare schoolhavo, vwoLeerjaar 2

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Today

I am able to us the balance method to solve equations.

Slide 3 - Diapositive

Manipulating equations

What is an equation?

How can we manipulate equations?

We use the balance method.

Slide 4 - Diapositive

Solve for x, show your work:

2 x = - 20

Slide 5 - Question ouverte

Solve for x, show your work:

3 x - 2 = 19

Slide 6 - Question ouverte

Solve for x, show your work:

- 2 = 5 x + 23

Slide 7 - Question ouverte

The next step

Consider the equation

We've just solved

How can we turn that new situation into the known situation?

- 2 + x = 6 x + 23

- 2 = 5 x + 23

Slide 8 - Diapositive

Solve for x, show your work:

2 x + 3 = - 2 x + 25

Slide 9 - Question ouverte

Go, go, go!

42, 45*, 46, 49*, 53*, 54*, 57, 58*, 61*, 62+, 64*, 67*

timer

10:00

Slide 10 - Diapositive

3.4 balance method

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