Intermediate Algebra Quiz 2

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

Tags

CCSS.6.EE.B.7

3x - 5 = -26

• x=-21

• x=21

• x=-7

• x=61

Tags

CCSS.7.EE.B.4A

Solve:
7x + 19 = -2x + 55

• 4
• 14.8
• 8.2
• -4

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve:
2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

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

 $7x-3=7x+5$  

• No Solution

• Infinite Solutions

•  $x=2$  

•  $x=8$  

Tags

CCSS.8.EE.C.7A

 $7x-3=-3+7x$  

• No Solution

• Infinite Solutions

•  $x=0$  

•  $x=6$  

Tags

CCSS.8.EE.C.7A

 $2\left(5x-2\right)=-4+10x$  

• No Solution

• Infinite Solutions

•  $x=-8$  

•  $x=12$  

Tags

CCSS.8.EE.C.7A

 $-2-2x+7x=3$  

•  $x=1$   

•  $x=5$  

• No Solution

• Infinite Solutions

Tags

CCSS.8.EE.C.7B

How many types of solutions do linear equations have? Answer with a number.