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Bezzdna [24]
2 years ago
15

What is the value of the expression? ​−2.1(4.7+(−7.4))​ HELPPP

Mathematics
2 answers:
skelet666 [1.2K]2 years ago
6 0
I think it's 5.67 or 5.7 rounded to the nearest tenth.
sergey [27]2 years ago
4 0
To solve this, follow the order of operations, PEMDAS (Parentheses-Exponents-Multiplication-Division-Addition-Subtraction)

So to start off add 4.7 and -7.4 together

-2.1(-2.7)

Then multiply -2.1 by -2.7. Since these are both negative, your answer will be positive.

5.67 is your answer.

Hope this helps!


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aksik [14]

Answer:

The solution is (0, 4)

Step-by-step explanation:

Please pay attention to the first two equations and drop the last two:

12x−5y=−20 y=x+4 x=x=x, equals y=y=y   should ideally be:

12x−5y=−20

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