Question

4x > 1.2

Answer 1

then divide both sides by 4

x > 0.3

now be careful, if you divide or multiply by a NEGATIVE number, you must change the direction of the arrow. However that is not the case here.

Answer 2

4x-1.2>0
4(x-0.3)>0
4 is positive and for the function to be greater than zero, other term i.e.(x-0.3)should be positive. Because +ve X +ve = +ve, +ve X -ve = -ve, -ve X -ve = +ve
therefore x-0.3>0
x>0.3