- 9 +[26-(17+(28-(5-x)))]=71
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Step-by-step explanation:
- 9 +[26-(17+(28-(5-x)))]=71
- 9 +[26-(17+(28- 5+x))]=71
- 9 +[26-(17+(23 +x))]=71
- 9 +[26-(17+ 23 +x)]=71
- 9 +[26-(40 +x)]=71
- 9 +[26-40 - x]=71
- 9 +[14 - x]=71
- 9 + 14 - x =71
5 - x =71
- x = 71 - 5
- x = 66
x = -66
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