Solving Equations Quiz #1

Solve for x:
-4x = 44

• x = 48
• x = -11
• x = 40
• x = -176

x - 8 = -5 

• 13
• -13
• 3
• -3

What is the first step to solve this equation:

 $11-3x=44$  

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

Solve:

 $7+\frac{a}{3}=5$  

•  $a=-2$  
  

•  $a=-6$  
  

•  $a=3$  
  

•  $a=15$  
  

-2w + 10 = 56

• 23

• -23

• 33

• -33

Solve.

 $6a\ +\ 5a\ =\ -11$  

•  $a\ =\ 0$  

•  $a\ =\ 1$  

•  $a\ =\ -1$  

• None of these

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

•  $x\ =\ 2$  

•  $x\ =\ 8$  

•  $x\ =\ -2$  

•  $x\ =\ -8$  

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

-9a - 1 < 26

• a < -3
• a < 3
• a > -3
• a > 3

You flip an inequality symbol when you...

• subtract
• multiply and divide only
• multiple by a negative number
• multiple or divide by a negative number