Equations Using Models

What is the solution of the equation represented by the model?

• 18+18 = n+n

• 2n = 36

• n=36

• n=18

What is the solution of the equation represented by the model?

• n=9

• n=15

• n=6

• n=2

What equation is represented by the model?

• 2n=8+6+4

• 2n = 18

• n+2 = 18

• 2*n=8*6*4

What is the solution of the equation represented by the model?

• n=9

• n=15

• n=6

• n=2

What equation is represented by the diagram?

• 2n+3n = 20 +6

• 6n=26

• 5=26

• 5+2n=26

The variable is isolated by removing the same amount from both sides. Which diagram represents the same equation and allows for isolating the variable?

• n + 9 - 9 = 29 - 9

• n + 9 = 29 - 9

The variable is isolated by removing the same amount from both sides. Which diagram represents the same equation and allows for isolating the variable?

• 2n + 4 = 14 - 4

• 2n + 4 - 4 = 14 - 4

• 2n + 4 - 4 = 14

• 2n + 4 = 14

The variable is isolated by removing the same amount from both sides. Which diagram represents the same equation and allows for isolating the variable?

• 13 + 7 - 8 = n + 8 - 8

• 13 + 7 - 8 = n + 8

• 13 + 7 = n + 8 - 8

• 13 + 7 = n + 8

The variable is isolated by removing the same amount from both sides. Which diagram represents the same equation and allows for isolating the variable?

• n + 14 = 33

• n + 14 = 33 - 14

• n + 14 - 14 = 33 - 14

• n + 14 - 14 = 33

In the equation represented by the model, n = ?

( give only the number)