Using models to solve equations - pan balance

What equation is represented by the model?

• 2n=8+6+4

• 2n = 18

• n+2 = 18

• 2*n=8*6*4

What equation is NOT represented by the model?

• 2n+3=6

• 2+3+n=2+2+2

• n+5=6

• n+5 = 2+2+2

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 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?

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

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

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

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How would you isolate the variable in the equation represented by the model?

• Subtract 4 from both sides

• Subtract 10 from both sides

• Subtract 6 from both sides

• Add 4 to both sides