Solving Addition and Subtraction Equations

Solve for z. 
12 = y + 6

• 18

• 6

• 4

• 20

Tags

CCSS.6.EE.B.7

Solve for s. 
24 = s - 8

• 32

• 16

• 8

• 24

Tags

CCSS.6.EE.B.7

Why is an equation often referred to as a balancing scale?

• Because it has the same answer on both sides.

• Both of the sides are equal and are kept in balance

• They are not called balancing scales

• It looks like a balancing scale

Tags

CCSS.7.EE.B.4A

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

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

Tags

CCSS.6.EE.B.7

y - 33 = 147

• y = 114

• y = 177

• y = 180

• Answer not Given

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

Solve the equation:
x - 2.6 = -4.6

• x = 2

• x = -2

• x = 7.2

• x = -7.2

Tags

CCSS.6.EE.B.7

z + 45 = 92

• z = -47

• z = 137

• z = 47

• z = -137

Tags

CCSS.6.EE.B.7

Find the variable.
13 + q = 56

• 43

• 40

• q

• 42

Tags

CCSS.6.EE.B.7