Question 309989
|4x - 7| = 1
4x-7 = 1 or 4x-7 = -1
x = 2 or x = 3/2
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|3- 8x| = 1 
3-8x = 1 or 3-8x = -1
8x = 2 or 8x = 4
x = 1/4 or x = 1/2
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Answer to your question: no solution
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Cheers,
Stan H.