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goldfiish [28.3K]
3 years ago
6

Please help!

Mathematics
1 answer:
vichka [17]3 years ago
7 0

Step-by-step explanation:

We need to write the sum of 2x - 7 and the opposite of 2x

Opposite of 2x is (-2x)

Sum means to add the number :

2x-7 + (-2x)

Remove parentheses,

2x-7 - 2x

Taking like terms together,

2x-2x-7= 0-7

= -7

Hence, the answer is -7.

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Julia has 2 identical rooms in her house. If each room measures 8 feet on one side and 12 feet on another, what is the total are
otez555 [7]

<u>Answer</u>

192 ft²


<u>Explanation</u>

The rooms measures 12 feet by 8 feet. So it is a rectangle.

The area of a rectangle = length × width

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                                       = 96 ft²

The area of one room is 96 ft². There are 2 similar rooms.

The area of the 2 rooms = 96 × 2

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3 years ago
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?

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