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cheerleaderautumnche
16.12.2019 •
Mathematics
13. what is the result of adding 5.4a + 7.1 and -1.28 - 6.3?
a. 6.6a + 0.8
b. 6.6 - 0.8
c. 4.2a + 0.8
d. 4.2a - 0.8
what’s the answer
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Ответ:
C. 4.2a + 0.8
Step-by-step explanation:
Given:
The two binomials given for addition are:
Now, adding both the binomials, we get:
Distributing the positive sign inside the second binomial, we get:
Now, combining like terms using the commutative property of addition, we get:
Simplifying the above expression, we get:
Therefore, the resulting addition of the given binomials is![4.2a+0.8](/tpl/images/0420/3207/be79a.png)
Hence, option C is the correct answer.
Ответ:
no solution
Step-by-step explanation:
solve by elemination