Week 10~Thursday

 Solve the equation by distributing. Then solve for x.

-9(½x - 3) = 45

• x = -12

• x = 9

• x = 6

• x = -4

Tags

CCSS.8.EE.C.7B

 Solve the equation by distributing. Then solve for x.

8.5x - 2(2x + 8) = 11

• x = -12

• x = 9

• x = 6

• x = -4

Tags

CCSS.8.EE.C.7B

The perimeter of an equilateral triangle is 63 inches.

If the length of each side is (4x - 3), find the value of x. 

Equation: ​ (a)  

Solution: ​ (b)  

• 63 = 12x - 9
• 63 = 4x - 3
• 63 = 12x - 3
• x = 6 inches
• x = 12 inches
• x = 5 inches

Tags

CCSS.7.EE.B.4A

 Choose all common factors of 16m and 20mn.

• 2

• 4mn

• 4

• m

• 8n

Tags

CCSS.6.NS.B.4

Rewrite the expression by collecting like terms.

𝟏/𝟐𝒌 − 𝟑/𝟖𝒌

• -2/4 k

• -1/8 k

• 1/8 k

• 1/2 k

Tags

CCSS.7.EE.A.1

Simplify the following expression in standard

form:

2x – 5(2x – 7y + 3)

Mathematical Equivalence

ON

Tags

CCSS.6.EE.A.3

Expand the following: 

3/8(16x-24)

• 4x - 24

• 6x - 9

• 2x - 3

• 6x - 3

Tags

CCSS.7.EE.A.1