Back to Tutor Intake Assessment: Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions

8.EE.C.7.a Tutor Intake -- Classifying Linear Equations by Solution Type

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Grade 8·8 problems·~9 min·Common Core Math - Grade 8·standard·8-ee-c-7a
Work through problems with immediate feedback
A

Concepts

1

When solving a linear equation in one variable, simplification
always ends in one of three terminal forms. Which set correctly
lists all three?

2

A student solves an equation and reaches the terminal form
0=00 = 0. What does this mean about the solutions to the original
equation?

3

A student carefully solves x+6=x+2x + 6 = x + 2 and correctly reaches
6=26 = 2. They think they must have made a mistake because 66
does not equal 22. What should they conclude instead?

B

Procedures

1

Solve 2x+3=112x + 3 = 11 by successively simplifying to the form
x=ax = a. Enter the value of xx.

2

Simplify 3(x−1)+3=3x3(x - 1) + 3 = 3x completely. How many values of xx
make this equation true? Enter a number, or enter -1 to mean
"infinitely many."

3

Simplify 5(x+2)=5x−15(x + 2) = 5x - 1 completely. How many values of xx
make this equation true? Enter a number.

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