Linear Equations Error Analysis

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the second step of combining like terms on the left side.

• The mistake was made on the third step of moving the variable to the right side.

• The mistake was made on the fourth step of moving the constant to the left side.

• The mistake was made on the first step doing the distributive property.

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the second step of combining like terms on the right side.

• The mistake was made on the third step of moving the variable to the left side.

• The mistake was made on the fourth step of moving the constant to the right side.

• The mistake was made on the first step doing the distributive property.

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the second step doing the distributive property on the right side.

• The mistake was made on the third step of moving the variables.

• The mistake was made on the fourth step of determining true/false statement as infinite vs no solution.

• The mistake was made on the first step doing the distributive property on the left side.

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the first step of moving the variable to the right side.

• The mistake was made on the second step of moving the constant to the left side.

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the distributive property steps.

• The mistake was made on combining like terms on the left side.

• The mistake was made on moving the variable to the right side.

• The mistake was made on moving the constant to the left side.

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the distributive property step.

• The mistake was made on combining like terms on either side.

• The mistake was made on moving the variable to the left side.

• The mistake was made on moving the constant to the right side.

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the distributive property steps.

• The mistake was made on combining like terms on the right side.

• The mistake was made on moving the variable to the left side.

• The mistake was made on moving the constant to the right side.

You need to combine like terms when you see more than two terms per side of an equation.

Example: 3x + 5 - 2x = 6x + 3

• True

• False

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

How many solutions does the equation below have?
5h - 7 = 5(h - 2) + 3

• Identity

• No solution

• Three Solutions

• One Solution