Unit 3 Review: Equations and Expressions
  • 1. Objective 3.1: Simplify the expression: 8-4v-v
A) -3v+8
B) 3v
C) 5v+8
D) -5v+8
E) -3v
  • 2. Objective 3.1: Simplify: 9x-6-8x
A) 5x
B) x-6
C) -1x-6
D) -5x
E) 6-x
  • 3. Objective 3.1: Combine like terms: 4y2+5y3-6x-5y2-x
A) 5y3-y2-7x
B) 4y2-7x
C) 5y3+y2-7x
D) 5y3-y2-5x
E) 4y2-5x
  • 4. Objective 3.1: Write a smaller math sentence: 3x2+10-3x2-2x-11+x2-3x2+5x
A) -2x2+3x-1
B) 3x2+3x-1
C) -x-1
D) -2x2+3x+1
E) x-1
  • 5. Objective 3.1: Add the fractions 4b/10+3b/5
A) 7b/15
B) 6b/25
C) 7b/10
D) 12b/50
E) 1b
  • 6. Objective 3.2: Simplify: 6x+8(2+5x)
A) 11x+16
B) 46x+2
C) 46x+16
D) 40x+16
  • 7. Objective 3.2: Distribute and combine like terms: -3(6m-5)-5
A) -18m-10
B) -18m+10
C) -18m-20
D) 18m-20
  • 8. Objective 3.2: -5(6-x)-(1-8x)
A) 3x-31
B) 13x-31
C) 13x-29
D) 13x+29
E) 3x-31
  • 9. Objective 3.2: A rectangle has a length of 8 cm and a width of 3x+7 centimeters. What is the perimeter of this rectangle?
A) 24x+56 cm2
B) 24x+56 cm
C) 6x+30
D) 3x+15 cm
E) 6x+30 cm
  • 10. Objective 3.3: Which of the following best describes the idea of an equation?
A) A merry-go-round (it goes around and around)
B) A see-saw (it requires balance)
C) A swing (it goes back and forth)
D) A bulldozer (it pushes things)
  • 11. Objective 3.4: Solve: -3=r-(-9)
A) 6=r
B) 12=r
C) -12=r
D) -6=r
  • 12. Objective 3.5: Isolate the variable: q/-4=-20
A) q=5
B) q=-5
C) q=80
D) q=-80
  • 13. Objective 3.5: Get n by itself: 9=-n/5
A) 1.8
B) -1.8
C) -45
D) 14
E) 45
  • 14. Objective 3.5: Solve the equation by isolating the variable: -1/5c=2
A) -4
B) -10
C) 10
D) 4
E) 1.8
  • 15. Objective 3.4: Solve: 7.8+h=-5.7
A) -.73
B) -13.5
C) .73
D) 13.5
  • 16. Objective 3.4: Given that w satisfies the equation -4+w=7.3, what two consecutive integers does w lie between?
A) 11.3
B) 10 and 12
C) 3.3
D) 3 and 4
E) 11 and 12
  • 17. Objective 3.4: Given the equation -5=x-4, what is the value of four times x?
A) -4
B) 4
C) 5
D) -1
E) 1
  • 18. Objective 3.6: Solve: 2b-5=-17
A) -11
B) 11
C) 6
D) -5.5
E) -6
  • 19. Objective 3.6: Solve for a: -1+a/2=-3
A) -0.5
B) 5
C) 4
D) -5
E) -4
  • 20. Objective 3.7: Solve 5a-39=7(2a-3)
A) 4
B) -2
C) 2
D) -4
  • 21. Objective 3.7: Which of the following best describes the answer to the equation -6b-18=-6(b+3)
A) 3
B) No solution
C) Infinite Solutions
D) -3
E) 0
  • 22. Objective 3.7: Solve n+4=7n-4(-1+5n)
A) No solution
B) -8/14
C) 8/14
D) 0
E) Infinite Solutions
  • 23. Objective 3.7: Solve -6(-4+5x)+8x=-30-2x
A) No solution
B) -3.6
C) Infinite Solution
D) 2.7
E) 1.5
  • 24. Objective 3.8: Solve for x: g=-3x
A) g/3
B) g-3
C) g+3
D) g/-3
  • 25. Objective 3.8: Solve for c: b=4a+c
A) b+4a
B) b/4a
C) b/4-a
D) b-4a
  • 26. Objective 3.8: Solve for w: z+w=x-y
A) x-y-w
B) (x-y)/z
C) x-y-z
D) x-y+z
  • 27. Objective 3.8: Solve for a: z=m+ba
A) z-m-b
B) (z-m)/b
C) z/m - b
D) z/m + b
  • 28. Objective 3.9: Eight less than the product of three and a number is twenty-two. What is the number?
A) -10
B) 14/3
C) -1
D) -14/3
E) 10
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