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marshall27 [118]
3 years ago
9

Simplify the expression 6x + 9 + 3x -x by combining like terms?

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0

Answer:

Group the like terms

6x + 3x - x + 9

Work out the x values together and then add the 9

9x - x + 9

8x + 9

your final answer should be about 8x + 9 as it cannot be simplified anymore

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In a class, every student knows French or German (or both). 15 students know French, and 17 students know German.
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Answer:
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Explanation:
We are given that:
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Now, the maximum number in the class can be calculated by assuming that no student can speak both languages.
This means that the number of students will be the summation of those who know French only (15) and those who know German only (17)

In this case:
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Hope this helps :)
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