Question

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

Answer 1

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~

Answer 2

9x - 71 > 3(3x - 7u)
Expand the brackets
9x - 71 > 9x -21u
Subtract 9x from both sides
-71 > -21u
multiply by -1 to make positive
71 > 21u
Divide both sides by 21 to get what u equals
71/21 = 3.3....
U must be more than 71/21 or 3.3