Module 7_LL2c_DuranK 1

Solving Linear Equations

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Materials

1 Card stock paper Ruler Pencil Scissors Color Pencils Brain

Module 7_LL2c_DuranK 3

Foldable

Fold along the middle

(hotdog style)

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Open fold and draw lines across the inside

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Cut to the middle fold

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F OL D

Parenthesis ( )’s

X’s on Same Side (or constants)

X’s on Opposite Sides

Constant

Coefficient

Solution

FRONT SIDE

Module 7_LL2c_DuranK 7

Use Distributive Property to remove ( )’s

Combine Like Terms

Use Additive Inverse to remove x on right side

Use Additive Inverse to remove constant

Use Multiplicative Inverse to remove coefficient.

3 types of solutions: one (x = -1), infinite for true statements (5 = 5), or none for false statements (3 = 0).

3 types of solutions: one (x = -1), infinite for true statements (5 = 5), or none for false statements (3 = 0).

Module 7_LL2c_DuranK 8

Use Distributive Property to remove ( )’s

Combine Like Terms

Use Additive Inverse to remove x on right side

Use Additive Inverse to remove constant

Use Multiplicative Inverse to remove coefficient.

3 types of solutions: one (x = -1), infinite for true statements (5 = 5), or none for false statements (3 = 0).

3(-3x – 1) – 9 = -5(x – 4)

-9x – 3 – 9 = -5x + 20

-9x – 12 = -5x + 20 +5x +5x

-4x – 12 = 20+ 12 +12

-4x = 32 -4 -4

x = -8

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F OL D

Back SIDE

Name

Date