Mathematics because i’m good at math

What is a possible solutions of the x> 3?

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

Solve 2x+y=3 x+y=5 in substitution method