What operation will eliminate the x variable in -6+6y=6

What properties allow transformation to be used as a problem solving tool

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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?