Identify the terms, like terms, coefficients, and constants in the expression of 9 - z + 3 - 2z.

There are four terms: 9, -z, 3 and -2z.-z and -2z are like terms. 9 and 3 are like terms.the coefficient of -z is -1. the coefficient of -2z is -2.9 and 3 are constants.

What is the inequality?