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PauletteLahmann PauletteLahmann
  • 11-06-2014
  • Mathematics
Answered

If 9(x − 9) = −11, then x = ?

A-92/9
B-20/9
C-11/9
D-2/9
E70/9

Verified Answer :

konrad509
konrad509 konrad509
  • 11-06-2014

\(9(x - 9) = -11\\ 9x-81=-11\\ 9x=70\\ x=\frac{70}{9}\)

Answer Link
Lilith
Lilith Lilith
  • 11-06-2014

\(9(x - 9) =-11\\ \\9x-9\cdot 9=-11\\ \\9x-81=-11 \ \ |+81\\ \\9x-81+81=-11+81\\ \\9x=70 \ \ /:9\\ \\x=\frac{70}{9}\\ \\Answer : \ E. \ \ 70/9\)

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