Question

Write an equation ;

you have cable plan that costs $39 a month for a basic plan plus one movie channel . Your friend has the same basic plan plan plus two movies channels for $45.50 . What is the basic plan change that you both pay ?

Answer 1

your cable plan is x+y=39 and your friends is x+2y=45.5 (or at least that's how I would write it) and you're solving for x