Which choice gives a valid first step to solve the equation -2(w-3)=4? A. -2w-6=4
B. -2w+6=4
C. -2w=7
D. w-3=6
E. w-3=-2

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?