2.2-2.4 Quiz

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

19  + a  =  -50

• a = -950
• a =  -69
• a = -31
• a = -50/19

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

 $-5\left(4x\ -\ 2\right)\ =\ -2\left(3\ +6x\right)$  

•  $x\ =\ 2$  

•  $x\ =\ 8$  

•  $x\ =\ -2$  

•  $x\ =\ -8$  

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

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

5x - 4 + 2x = 3

• 1
• 2
• 3
• 4

22 + 2a = 37 + 6 + a

• 21
• -21
• 5
• 6

Solve the equation:
3(x - 1) = 2x + 9

• x = 12
• no solution
• x = 10
• x = 6