8(2j-6)>2(4j-4)

1 answer

Here we assume j is a real variable (not √(-1)).

8(2j-6)>2(4j-4)
Divide by 2 and expand both sides
8j-24 > 4j-4
Divide by 4:
2j-6 > j-1
Subtract j from each side:
j-6 > -1
Add 6 to each side:
j > 5