An inverse operation here will be to multiply both sides of the inequality by -3/2
What is the inverse operation?
Inverse operations are pairs of mathematical manipulations in which one operation undoes the action of the other—for example, addition and subtraction, multiplication and division.
The inverse of a number usually means its reciprocal, i.e. x - 1 = 1 / x . The product of a number and its inverse (reciprocal) equals 1.
An inverse operation here will be to multiply both sides by -3/2 because -3/2 is an inverse of -2/3