Unit 4 Review Equivalent Expressions

What is the value of 3x²-7

when x=5

• -57

• 68

Evaluate Expression 9y ÷ (x²+1) when x=2 and y=15

• 5

• 10

• 27

• 19

Write the phrase as an expression.
twice a number x plus 8

• 2 + 8x
• 2x + 8
• 2(x+8)
• 8(2+x)

Tags

CCSS.6.EE.A.2A

triple the sum of x and 5

• 3 + x + 5
• 3 ∙ x + 5
• 3(x + 5)
• (3x) + 5

Tags

CCSS.6.EE.A.2A

2(4 + 9w) 

• 8+9w
• 2+9
• 8+18w
• 2+9w

Tags

CCSS.6.EE.A.3

Simplify:

24 ÷ 4 x 2 + (3² - 1 + 6)

• 5

• 14

• 17

• 26

Variables with no number have a coefficient of 1.

• True

• False

7x + x + 3x=

• 10

• 11

• 10x

• 11x

• 21

In this expression, which is the coefficient?

5 + 12y + r

• q

• +

• 5

• 12

X² can be combined with X

• True

• False

Tags

CCSS.7.EE.A.1