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Please help me on this equation 9x-71>3(3x-7u)

Please help me on this equation 9x-71>3(3x-7u)
asked 219k views
3 votes
Please help me on this equation
9x-71>3(3x-7u)

asked
User Zaneta
by
8.9k points

1 Answer

5 votes
9x-71>3(3x-7u)
⇒ 9x -71 > 3*3x -3*7u (distributive property)
⇒ 9x -71 > 9x -21u
⇒ (9x -9x) -71 > (9x -9x) -21u
⇒ -71 > -21u
⇒ -21u < -71
⇒ u > -71/(-21)
⇒ u > 3 8/21

Final answer: u > 3 8/21~
answered
User Stiffo
by
7.9k points
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