Unit 5: Expressions & Equations

The RED side of the equation can be represented as ​ (a)  

The BLUE side of the equation can be represented as ​ (b)  

The ENTIRE equation could also be represented as ​ (c)   ​ ​

• 3x + 20
• 20 + 9
• x + x + x + 20 = 29
• x + x + x + 20x
• 20(3x)
• 20 - 9
• 9(20)
• 3(20) = 2(9)
• 2(2x) = 20 + 9

Balance the hanger and determine the value for x.

The RED side of the equation could be represented by ​ (a)  

The BLUE side of the equation could be represented by ​ (b)  

The ENTIRE equation could be represented by ​ (c)  

• 2x + 20
• 2(x + 20)

• 20(2x)

• x + 30
• x + x + 20 = x + 30
• 30x
• 30 - x
• 2x(20) = 30x
• x + x + x + 20 = 30 + x

Balance the hanger and determine the value for x.

The RED side of the equation could be represented by ​ (a)  

The BLUE side of the equation could be represented by ​ (b)  

The ENTIRE equation could be represented by ​ (c)  

• 5(3x)

• 2(5) + 3

• 3x + 5 + 5
• x + 50
• 3x + 2(5) = 50 + x
• 50x
• 50 - x
• x + x + x + 5x = 50 + x
• 2(5) x 3(x) = 50x

Balance the hanger and determine the value for x.

Match the following!

• b + 3

• b + b + 3

• 6b - 3

• 2(4b) - 3b

• 5b

• 2b + 2(2b) - 3

• 3b

• 4b - 3b + 3

• 2b + 3

• 2b + b

Match the following!

• 13n - 2b

• 10n + 3n - 2b + b

• 13n + 3b

• 2n + b - n

• 13n - 3b

• 7n + 4b - n + 5b

• n + b

• 2(4n) + 5n - 2b

• 6n + 9b

• 13n + b + 2b

COMBINE TERMS & REWRITE

6m + 4 - 2b + m

COMBINE TERMS & REWRITE

9 + 3n - 1 + n + 4p