Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 15x + 9y = 240, 6x + 3y = 90

Question

anonymous · Answer

do you have to just move the 15x to the other and vise versa?

anonymous · Answer

yes, the whole thing is that you want to get one of the equations in either the y= or x= 

form. Then you can subsitute that in to the other equation

anonymous · Answer

okay so 15x+9y=240 first you take 15x and subtract it from 240 to get 225 then you subtract 9y from 225 to get 216

anonymous · Answer

okay I did something wrong