I need to show my work but I don’t know how to do these can someone help me??

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?