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Solve using the additional principle 
X-7/9=2/27

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Steve S. | Tutoring in Precalculus, Trig, and Differential CalculusTutoring in Precalculus, Trig, and Diffe...
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X - 7/9 = 2/27
 
Add 7/9 to both sides of the equation:
 
X = 7/9 + 2/27
 
Multiply 7/9 by 3/3:
 
X = 21/27 + 2/27
 
X = 23/27