Ask Question
22 February, 14:21

Find all real numbers x such that |7x - 4| = 38

+5
Answers (1)
  1. 22 February, 14:24
    0
    Hello,

    if 7x-4>=0 (or x>=4/7) then

    |7x-4|=7x-4

    7x-4=38

    ==>7x=42

    ==>x=6

    if 7x-4<0 (or x<4/7) then

    |7x-4|=-7x+4

    -7x+4=38

    ==>-7x=34

    ==>x=-34/7

    sol={6; - 34/7}
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Find all real numbers x such that |7x - 4| = 38 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers