How do I Solve 2-V=17

What is equal to n in this equation

Corey added stickers to his party invitations. he put the same number of stickers on 7 invitations. which expression shows the number of stickers corey put on each invitation? let the variable s stand for the number of stickers corey started with. look at replys for options

The distance from third base to home plate is 88.9 feet. romeo was 22.1 feet away from third base when he was tagged out. the equation 88.9 - t = 22.1 can be used to determine how far he neeeded to run to get to home plate. using substitution, the coach determines that romeo needed to run