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8 September, 21:04

Do not solve but simplify the following equations:

-4x+9x+3

5x - (-3x)

-8n - (-2n) - 7

6n + (-5n) + 3

+3
Answers (1)
  1. 8 September, 21:18
    0
    -4x+9x+3=5x+3

    5x - (-3x) = 5x+3x=8x

    -8n - (-2n) - 7=-8n+2n-7=-6n-7

    6n + (-5n) + 3=6n-5n+3=n+3

    Therefore, the answers are 5x+3, 8x, 6n-7, and n+3
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