RJHS 6.EE.7 Equations Test 1

Which value would make the equation 5m=35 true? Use substitution to check your answer.

• 6

• 5

• 7

• 9

The properties of equality allow you to add/subtract/multiply/divide the same amount to ______ while maintaining a balanced equation.

• itself

• both sides of the equation

• one side of the equation

• the left side of the equation

What equation is represented in the picture?

• 12 + 23 = 7y

• 23y = 7 + 12

• 23 + 7 = y + 12

• 12y = 30

Which of the following explains how to get the variable alone?

• multiply both sides by 9

• add 5 to both sides

• divide both sides by 5

• multiply both sides by 5

Which equations have z = 42 as the solution? Select all that apply. Select all that apply.

• 28 + z = 70

• 50 - z = 6

• z + 81 = 123

• z - 6 = 38

• z - 40 = 2

Jeremiah wrote that 4 + 4 = 8. Then he wrote that 4 + 4 - k = 8 - k. Did his equation remain balanced, yes or no? Explain why.

For the equation 9.4 = k + 5.07 which value is the solution?

• k = 3.33

• k = 4.33

• k = 4.47

• k = 14.47

Choose ALL of the equations that are true if y = 6.

• 52.37 - 46.37 = y

• 8y = 48

• 3.2 + y = 9

Dan has 18 movie posters in his collection. After he buys more posters, he has 23 in his collection. How many posters did Dan buy?

a. Let p represent the number of posters that Dan bought. Write an equation to represent the problem.

b. Solve the equation and answer the above question.

Write an equivalent equation to (4+9) = (7+6) using a property of equality. Explain why the chosen property of equality works.