Question

What is the solution to the equation represented by the model below?

x = negative 14
x = negative 2
x = 2
x = 14

Answer 1

2x + 4

To model 2x+4, you need :

2 positive x-tiles to represent 2x.

4 positive unit tiles to represent 4.

3x+(-1)

To model 3x+(-1), you need :

3 positive x-tiles to represent 3x.

1 negative unit tile to represent (-1).

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