Quiz 1 - Multi-step linear equations

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

Tags

CCSS.8.EE.C.7B

2x + 3(5x - 7) = 47

• 1
• 2
• 3
• 4

Tags

CCSS.8.EE.C.7B

-8(-8x - 6) = -6x - 22

• 2/5
• -1
• 8/7 
• 2

Tags

CCSS.8.EE.C.7B

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step
• They should add 19 instead of subtracting 19
• I can not find an error
• Instead of adding 3k they should subtract 3k

Tags

CCSS.HSA.REI.A.1

How many solutions does the equation below have?
6(3a +1) - 30 = 3(2a - 4)

• Identity
• No Solution
• Three Solutions
• One Solution

Tags

CCSS.8.EE.C.7A

Find the Error
What error did the student make when solving the equation:
5x + 6 =  66
5x - 6 = 66 -6
5x = 60
5*5x= 60*5
x = 300

• The student subtracted 6 from both sides instead of adding
• Student multiplied by 5 instead of dividing by 5
• Student got the wrong answer when subtracting 66-6
• The student did not correctly eliminate the variable from one side of the equation

Tags

CCSS.HSA.REI.A.1

-(n - 8) = -2

• 6
• 10
• -10
• -6

Tags

CCSS.7.EE.B.4A

5x - 4 + 2x = 3

• 1
• 2
• 3
• 4

Tags

CCSS.8.EE.C.7B

Solve

• 2

• -8

• No Solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.7A

Which equation will end in "no solution"?

• 2w - 11 = 3w + 5

• 2(w + 8) = 2(2w - 19)

• w + 7 + w = 2w - 9

• 2w - 6 = 2(w - 10) + 5w

Tags

CCSS.8.EE.C.7A