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If -25+k=21, what is the value of k ?

If −25+k=21 -25+k=21 , what is the value of k k ?

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Full solution

Q. If −25+k=21 -25+k=21 , what is the value of k k ?
  1. Identify Goal: Identify the goal of the problem.\newlineWe need to find the value of kk in the equation −25+k=21-25 + k = 21. To do this, we will isolate kk on one side of the equation.
  2. Add 2525: Add 2525 to both sides of the equation to isolate kk.\newline−25+k+25=21+25-25 + k + 25 = 21 + 25\newlineThis simplifies to:\newlinek=46k = 46
  3. Check Solution: Check the solution by substituting the value of kk back into the original equation.−25+46-25 + 46 should equal 2121.21=2121 = 21This is true, so our solution for kk is correct.

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