The difference of twice a number and 3 is -21

Step-by-step explanation:

The word difference means subtractions. For example, the difference of 8 and 3 is 5. In equation form, this means " 8 - 3 = 5 "To say "twice a number" means to have a number twice, which is multiplication. Since we don't know what the number is, we will call it x. So to put the proposed question in equation form, we would say "2x - 3 = -21"

no this is a nonlinear negative