Thread: Help with fairly simple, quick problem.

Can someone solve this and show the work for me, please?

3(x-y)=2(y-x) + 8
-(2x - y) = 3(y + 3x - 1)



Thanks very much. i\I just need to know how to work it.

Originally Posted by alkali112

3(x-y)=2(y-x) + 8
-(2x - y) = 3(y + 3x - 1)

hmm...

first let's distribute out the equations to get:




Alright, now let's solve for x (or y, it's your choice) for the first problem:



now take the second equation:



and also solve for x:



and now we can start solving stuff. First things first, you have to write down that:



So now we substitute:



so now multiply both sides by -11 and 5 to get:



now use the distributive property:



now move things around:



then divide:



Now you can solve for x.


On a side note, is not a nice number, you should double check my work and see if my arithmetic is right.

a "quick" problem indeed

Originally Posted by Quick

hmm...

first let's distribute out the equations to get:




Alright, now let's solve for x (or y, it's your choice) for the first problem:



now take the second equation:



and also solve for x:



and now we can start solving stuff. First things first, you have to write down that:



So now we substitute:



so now multiply both sides by -11 and 5 to get:



now use the distributive property:



now move things around:



then divide:



Now you can solve for x.


On a side note, is not a nice number, you should double check my work and see if my arithmetic is right.