One Variable Equation Add and Subtract

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

5 less than a number is 15.

• x - 5 = 15

• 5 - x = 15

• 15 - x = 5

Which choice models this situation? Marcus needs to sell 25 tickets to a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still need to sell?

• t - 9 = 25

• t + 9 = 25

• 9t = 25

• t/9 = 25

Tags

CCSS.HSA.CED.A.3

x - 7 = -15

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.7

x + (-18) = 34

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.7

In order to solve 6j - 9 = 27, I would first ​ (a)   , then ​ (b)   .

• add 9 to both sides

• subtract 9 from both sides

• divide by 9 on both sides

• divide both sides by 6

• subtract 6 from both sides

• add 6 to both sides

Tags

CCSS.7.EE.B.4A

Solve the equation.

x + 9 = -5

Mathematical Equivalence

OFF

Tags

CCSS.6.EE.B.7

Solve the following equation 
8 = m - 12

• 4

• 0.5

• 5.0

• 20

Tags

CCSS.6.EE.B.7

-16+ x= -15

• 2

• 0

• -1

• 1

Tags

CCSS.6.EE.B.7

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10

• v + 4 = 10

• 10 - 4 = v

• Answer not Given

Tags

CCSS.HSA.CED.A.3