Find the error in the problem below 19 - 2k = 3k - 1 +3k +3k 19 + 1k = -1 -19 -19 k = -20

Instead of adding 3k they should subtract 3k

They should have divided by 1 for the last step

They should add 19 instead of subtracting 19

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

Student multiplied by 5 instead of dividing by 5

The student subtracted 6 from both sides instead of adding

Student got the wrong answer when subtracting 66-6

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

The steps in solving 5b - 6 = 24 are:

Add 6 to both sides and divide both sides by 5

Add 6 to both sides and multiply both sides by 5

Subtract 6 from both sides then multiply both sides by 5

Subtract 6 from both sides then divide both sides by 5

The steps in solving 4b + 4 = 24 are:

Subtract 4 from both sides then divide both sides by 4

Add 4 to both sides then divide both sides by 4

Add 4 to both sides then multiply both sides by 4

Subtract 4 from both sides then multiply both sides by 4

ALG1 - Unit 2 - Algebraic Expressions and Equations - REVIEW

Authored by Curtis Pilgreen

Mathematics

9th - 12th Grade

CCSS covered

Used 12+ times

ALG1 - Unit 2 - Algebraic Expressions and Equations - REVIEW

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60 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify 5(2 - 7n) =

52 - 57n

10 - 7n

10 - 35n

10 + 35n

Tags

CCSS.6.EE.A.3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify the expression:
6 + 2(7x - 3)

14x + 12

14x

14x - 12

56x - 24

Tags

CCSS.6.EE.A.3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify:
5x - 6x - 8x + 7

-9x + 7

-9x - 7

9x + 7

9x - 7

Tags

CCSS.7.EE.A.1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify the expression: 3(1 - 2x) + 7

21 - 6x

24 + 6x

10 + 6x

10 - 6x

Tags

CCSS.6.EE.A.3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

-4(-4d - 5)

16d+20

-16d+20

16d-20

-16d-20

Tags

CCSS.6.EE.A.3

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

3(2x+1)+2(x-4)

8x-11

8x+11

8x+5

8x-5

Tags

CCSS.6.EE.A.3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify the following expression:
3 + 5x + 8 - 2x

7x - 11

7x + 11

-3x + 11

3x + 11

Tags

CCSS.7.EE.A.1

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