Solve the system using substitution.
3x + y = 1
x - y = 3
What is the solution for x?

Question

Solve the system using substitution.
3x + y = 1
x - y = 3 
What is the solution for x?

uri · Answer

Show your work if you tried @fukaawa

immanuelv · Answer

well first step should be to try to isolate x or y  in the second equation
then you can plug in the equation to the x or y in the first equation

uri · Answer

@shahd-owies Giving direct answers is against the Code of Conduct here,Please delete your answer. http://openstudy.com/code-of-conduct

ikram002p · Answer

she is new uri :P
i'll kill u if u abused her again xD

anonymous · Answer

nobody ever follows the code of conduct tho lmao

immanuelv · Answer

it depends if you wanna learn or just want someone to do your homework

uri · Answer

@ikram002p I am very well aware of the fact that,that user is new...That's why I told them. Or else I could have reported :)

anonymous · Answer

3x+v=1
x-v=3 so x=3+v
by substituting the value of x in the first equation 
3(3+v)+v=1
9+3v+v=1
so 4v=-8
which gives that v=-2
but we knew that x=3+v
which gives that x=1