Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 12

asked Apr 2, 2022 3.5k views

16 votes

Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 12 – (–9)

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7 votes

Answer:

Explanation:

12 - (-9)

Open The bracket :

Recall: - * - = +

Hence,

12 + 9 = 21

Kaufman answered Apr 6, 2022

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