Question

Solve for the variable "i"
9x- 7i > 3 (3x-7u)
answer this correctly and get a lot of points! ;) ;) ;)

Answer 1

9x- 7i > 3 (3x-7u)
9x- 7i > 9x-21u
9x-9x-7i > 21u
-7i > 21u
-i > 21u/3
-i > 3u
i < -3u

Answer 2

≥ pretend this is a greater than sign since I cannot find it.
9x - 7i ≥ 3(3x-7u)
9x - 7i ≥ 9x - 21u
Subtract 9x on both sides
-7i ≥ -21u
Divide both sides by -7
i ≤ 3u

The answer is i ≤ 3u

Thank you for pointing out my error