Seudónimo Seudónimo
  • 18-06-2020
  • Mathematics
contestada

Simplify 9 - {x - (7 + x)}

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Аноним Аноним
  • 18-06-2020

Let's simplify step-by-step.

9−(x−(7+x))

Distribute the Negative Sign:

=9+−1(x−(7+x))

=9+−1x+(−1)(−7)+−1(−x)

=9+−x+7+x

Combine Like Terms:

=9+−x+7+x

=(−x+x)+(9+7)

=16

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