Algebra Spiral Review

Which expression is equivalent to 4(a + 4) - 2a?

• 2a + 16

• 2a + 4 

• 4 - 1a

• 3a + 8

Tags

CCSS.6.EE.A.4

Solve the system of equations by substitution.
y = -4x + 5
y =  3x - 16

• (-3, -25)

• (3,-7)

• (11, 17)

• (21, 47)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for W:

• 9

• 11

• 15

• 10

Tags

CCSS.7.EE.B.4A

Simplify the expression below.
 
12xy − 15x + 6xy

• -9xy

• 3xy

• 18xy - 15x

• 6xy - 15x

Tags

CCSS.7.EE.A.1

8x ≥ -32

• x ≥ -4

• x ≥ 4

• x ≤ -4

• x ≥ 4

Tags

CCSS.6.EE.B.8

Combine the like terms.

9x + 4x = ?

• 5x

• 13x

• 36x

• 3x

Tags

CCSS.7.EE.A.1

Translate the sentence into an equation:
Four more than six times a number is 18.

• 10x = 18

• 4x + 6 = 18

• 4 + 6x = 18

• not enough info

Translate the sentence into an inequality.
Seven subtracted from n is greater than or equal to 18.

• n - 7 > 18

• 7 - n ≥ 18

• n - 7 ≥ 18

• n + 7 ≥ 18

Tags

CCSS.7.EE.B.4B

Translate this phrase into an algebraic equation:

A number tripled subtracted from 60 is the same as 21.

• 3c − 60 = 21

• 60 − 3 = 21c

• 60 − 3c = 21

• c(60 − 3) = 21

There are 15 animals in a barn.  These animals are horses and chickens.  There are 44 legs in all.  Which system of equations represents the situation?

• x + y = 15
  4x + 2y = 44

• 4x + 2y = 15
  x + y = 44

• x = 2y + 44
  4x = y + 15

• 2x - 4y = 44
  x - y = 15

Tags

CCSS.8.EE.C.8C