Solving Two-Step Equations All Operations

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

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

x - 8 = -5 

• 13

• -13

• 3

• -3

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

Solve the equation below:

• k = 152

• k = 176

• k = 5

• k = 27

Solve the equation:
1/2x = 6

• x = 12

• x = -12

• x = 3

• x = -3

Solve the equation:
-2.6 + x = -4.6

• x = 2

• x = -2

• x = 7.2

• x = -7.2

Solve the equation:
-3 + x = -12

• x = 9 

• x = -15

• x = -9

• x = 15

-4 + r = 10

• r = 14

• r = 6

• r = -6

• r = 40

-y = 22

• y = 1

• y = -22

• y = 0

• y = -1