Answer:
Properties of inequality
Addition property: If x < y, then x + z < y + z. ...
Subtraction property: If x < y, then x − z < y − z. ...
Multiplication property:
z > 0. If x < y, and z > 0 then x × z < y × z. ...
z < 0. If x < y, and z < 0 then x × z > y × z. ...
Division property:
It works exactly the same way as multiplication.
z > 0.