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Simplify the expression:\newline9+(z+−7)=9 + (z + -7) = _____

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Full solution

Q. Simplify the expression:\newline9+(z+−7)=9 + (z + -7) = _____
  1. Write Expression: First, let's write down the expression as it is: 9+(z+−7)9 + (z + -7).
  2. Add Parentheses: Now, we'll add the numbers inside the parentheses: z+(-7)z + (\text{-}7) is the same as z−7z - 7.
  3. Add 99: Next, we add 99 to the result from the previous step: 9+(z−7)9 + (z - 7).
  4. Simplify Result: We simplify that to get: z+2z + 2. Oops, wait, that's not right, it should be z+9−7z + 9 - 7 which equals z+2z + 2.

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