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borishaifa [10]
2 years ago
10

Find the sum. (–7b + 8c) – (12a + 14) + (5a + 5b)

Mathematics
2 answers:
AfilCa [17]2 years ago
8 0

Answer:

-2b + 8c - 7a -14 .

Step-by-step explanation:

Given  :  (–7b + 8c) – (12a + 14) + (5a + 5b)

To find : Sum

Solution : We have given

(–7b + 8c) – (12a + 14) + (5a + 5b)

Remove parenthesis

- 7b + 8c - 12a - 14 + 5a + 5b.

Combine like terms

-7b + 5b + 8c - 12a + 5a - 14 .

-2b + 8c - 7a -14 .

Therefore, -2b + 8c - 7a -14 .

Semmy [17]2 years ago
3 0
Combine like terms
Then you’ll get -7a-2b+8c-14 which is the answer.
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3 years ago
How many times does the digit 7 appear among the terms of the sequence of consecutive integer numbers 7, 8, 9, ...., 777?
Dahasolnce [82]

Answer:

234 times

Step-by-step explanation:

<u>Number of times the number 7 appears in a hundred</u>

7 as units digit (07-17-27 ..... 97): 10 times

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3 years ago
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(2a)(2b) please help
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