Pop QUIZ: Solving two Step Equations

What would be the last step in solving the equation $\frac{X}{6}-2=12$   ?

• Add 2 to both sides

• Subtract 2 from both sides

• Multiply both sides by 6

• Divide both sides by 6

Tags

CCSS.7.EE.B.4A

What would be the first step in solving the equation for 2x+7=15?

• Add 7 to both sides

• Subtract 7 from both sides

• Divide both sides by 2

• Multiply both sides by 2

Tags

CCSS.7.EE.B.4A

What is the second step in solving the following equation?

-3x + 5 = 20

• Subtract 5 from both sides

• Divide both sides by -3

• Divide both sides by 3

• add 3x to both sides

Tags

CCSS.7.EE.B.4A

What was this student's mistake?

• They should have subtracted 6 from both sides

• They should have multiplied both sides by 8

• They should have divided both sides by

  $-8$

Tags

CCSS.HSA.REI.A.1

Solve: 4(a + 3) = -32

• -20

• -11

• -44

• -8

Tags

CCSS.7.EE.B.4A

Did Sarah make an error? If so, which is the best description of her error?

• She didn't distribute correctly. The second step should read 3x - 12 = 24

• She didn't distribute correctly. The second step should read -3x - 12 = 24

• She didn't distribute correctly. The second step should read -3x + 12 = 24

• She didn't make an error.

Tags

CCSS.HSA.REI.A.1

What was done to solve the equation?

(Line 1) 5x - 8 = 32

(Line 2) 5x = 40

(Line 3) x = 8

• add 8 to both sides, then divide both sides by 5

• add 8 to both sides, then divide both sides by 40

• subtract 8 from both sides, then divide both sides by 5

• subtract 8 from both sides, then multiply both sides by 5

Tags

CCSS.HSA.REI.A.1

In the equation
4p = 20
 the variable, p, is being multiplied by 4. How should you show your work to isolate the variable and solve the equation?

• Multiply both sides by 4.
  The solution is x = 80.
• Subtract 4 from both sides. 
  The solution is p = 16.
• Add 4 to both sides. The solution is p = 24.
• Divide both sides by 4. The solution is p = 5.

Tags

CCSS.6.EE.B.7

2 (n + 5) = -2

SELECT ALL THAT APPLY: what is the first step in solving the following equation ____________

• subtract 5 from both sides

• distribute 2 to all terms in the parenthesis

• add 2

• divide by 2 on both sides

Answer explanation

remove the 2 first by division instead of distributive property

Tags

CCSS.HSA.REI.A.1

In the equation

x + 7 = 12

7 is being added to the variable, x.

How should you show your work to isolate the variable and solve the equation?

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides.

  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7