kylaa04 kylaa04
  • 11-10-2016
  • Mathematics
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whats the answer two -9=7-x

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Аноним Аноним
  • 11-10-2016
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Librocubicularist
Librocubicularist Librocubicularist
  • 11-10-2016
−9 = 7−x

−9 = 7+−x
−9 = −x+7

−x
+7 
= −9


−x
+7
−7 
= −9−7
−x = −16

x=
16
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