Solving One Step Multi Step Equations

22 + 2a = 37 + 6 + a

• 21

• -21

• 5

• 6

Identify if this equation has one solution, infinitely many solutions or no solution.
-3x+1=x+9-4x

• one solution

• infinitely many

• no solution

Tags

CCSS.8.EE.C.7A

0.75 + 2(a - 0.5) = 3a - 0.4

• 0.15

• 5

• 1.5

• 3.75

Tags

CCSS.8.EE.C.7B

Solve:
3(3x - 6) = 18

• x = 4

• x = -4

• no solution

• infinite solutions

Tags

CCSS.7.EE.B.4A

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations

• math

• variable

• PEMDAS

Tags

CCSS.7.EE.B.4A

What is the first step to complete when solving this equation?
10 - 3x = 4

• Subtract 10

• Add 10

• Add 3

• Divide by -3

Tags

CCSS.7.EE.B.4A

Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2

• The student found an incorrect common denominator

• The student did not multiply all terms by the common denominator

• The student did not use opposite operations appropriately

• The student did not correctly eliminate the variable from one side of the equation

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

Tags

CCSS.HSA.REI.A.1

5x - 4 + 2x = 3

• 1

• 2

• 3

• 4

Tags

CCSS.8.EE.C.7B

2x - 3 + 4x = 27

• 12

• 4

• 5

• 15

Tags

CCSS.8.EE.C.7B