How to change 3X +3=3Y into ax+by=c form

What is the smallest integer n such that n\sqrt{2} is greater than 20

1. are the triangles similar and if so why? what is the value of x? show your work.

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.