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Mathematics 10 Online
martai:

What is the sum of the linear expressions? 2n + 6 and 6n - 2 8n + 4 8n + 8 4n + 4 12n - 12

MusicGeek:

Combine like terms. 2n plus 6n is 8n. and 6 and -2, when added, is 4. So the answer is 8n+4.

martai:

@musicgeek wrote:
Combine like terms. 2n plus 6n is 8n. and 6 and -2, when added, is 4. So the answer is 8n+4.
What is the sum of the linear expressions? 3x + 9 and 2x + 4 5x + 13 6x + 36 3x + 13 5x + 9

MusicGeek:

Combine like terms again. 3x plus 2x is 5x. 9 plus 4 is 13. So the answer is 5x+13.

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