Please help this is due soon plz

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

Simplify the expression 10/11(22z) + (a+5) -1

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