Multi-Step Equations

Solve.

 $6a\ +\ 5a\ =\ -11$  

•  $a\ =\ 0$  

•  $a\ =\ 1$  

•  $a\ =\ -1$  

• None of these

Tags

CCSS.8.EE.C.7B

 $50\ =-5\left(6n\ +\ 8\right)$  

•  $n\ =9$  

•  $n\ =\ -3$  

•  $n\ =-10$  

•  $n\ =\ -20$  

Tags

CCSS.7.EE.B.4A

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

•  $x\ =\ 2$  

•  $x\ =\ 8$  

•  $x\ =\ -2$  

•  $x\ =\ -8$  

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

 $4x\ +\ 6\ +\ 3\ =\ 17$  

•  $x\ =\ 6.5$  

•  $x\ =\ -6.5$  

•  $x\ =\ -2$  

•  $x\ =2$  

Tags

CCSS.7.EE.B.4A

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

•  $x\ =-20$  

•  $x\ =\ 20$  

•  $x\ =-10$  

•  $x\ =\ 10$  

8x - 27 - 10 - 6x = 15

• 16

• 26

• -11

• 11

Tags

CCSS.8.EE.C.7B

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.

Tags

CCSS.7.EE.B.4A

What is the inverse operation of multiplication? 

• multiplication
• addition
• subtraction 
• division 

Tags

CCSS.3.OA.C.7