Arrange the tiles on both boards to model the equation Use the algebra tiles to model the equation
2x + 4 = 3x + (-1). Then complete the sentences
To model 2x + 4, you need
positive x-tiles to represent 2x,
positive unit tiles to represent 4.
To model 3x + (-1) you'll need:
3
x-tiles to represent 3x.
unit tile to represent-1
Board sum: 0
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in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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step-by-step explanation:

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step-by-step explanation: