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Find All Real Solutions of the Equation ∣7x+1∣=7| 7 x + 1 | = 7

Question 181

Multiple Choice

Find all real solutions of the equation. ∣7x+1∣=7| 7 x + 1 | = 7


A) x=−8x = - 8 ,
x=8x = 8
B) x=−87x = - \frac { 8 } { 7 } ,
x=67x = \frac { 6 } { 7 }
C) x=−87x = - \frac {8 } { 7 } ,
x=−1x = - 1
D) x=−78x = - \frac { 7 } { 8 } ,
x=76x = \frac { 7 } { 6 }
E) no solution

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