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dimaraw [331]
3 years ago
11

Andrew is showing his work in simplifying (−5.7 + 2.2) − 1.1.

Mathematics
2 answers:
Leviafan [203]3 years ago
6 0
Answer: In step 1, Andrew used the commutative property

Explanation:
In step 1 he used commutative, which is a + b = b + a
(- 5.7 + 2.2) = 2.2 + (- 5.7)

Step 2, he used associative property, not the distributive.

Step 3, he just added5.7 + 1.1 = 6.8

Step 4, he distributed the negative sign:
- (6.8) = - 6.8
valkas [14]3 years ago
4 0

In step 2, Andrew used the distributive property

Thus is because a -1 was taken out of both -5.7 and -1.1

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