SOLUTION: How do I find y? The problem is: x-2y=0 (equation 1) 3x+y=0 (equation 2) Right now in my Algebra Honor class we're learning "Solving Systems by Substituion" and at first I unders

Question 1359: How do I find y?
The problem is: x-2y=0 (equation 1) 3x+y=0 (equation 2)
Right now in my Algebra Honor class we're learning "Solving Systems by Substituion" and at first I understood it but now I can't seem to get the answer I want. I don't know what to do so please help!
Anna "Haylea"
Answer by usyim88hk(158) (Show Source): You can put this solution on YOUR website!
OK, first we have to takes out both x and 3x from both equations, so lets multiply equation 1 by -3 so then we can takes the x-terms away from both equations:
:
(equation 1)
(-3)(x-2y) = 0(-3)
-3x+6y = 0
:
So now we can use substituion now
-3x+6y = 0
3x+y = 0
-----------
7y = 0
y = 0
--------------
So y is equal to zero
RELATED QUESTIONS
In the 7th grade completing Algebra Teached by: Ms. Haskins in Deer Park MIddle Magnet... (answered by jim_thompson5910)

{{{(x^2 + 2) d^2y/dx^2 + 3x dy/dx - y = 0}}} (tried to write this as simply (x^2 +... (answered by Edwin McCravy)

So, I was doing pretty good in my math class until we hit this section. Right now I'm... (answered by josgarithmetic)

HI! I just started Algebra 2 this year, and we are reviewing from algebra right now,... (answered by stanbon)

This my system of linear equation problem. 3x+2y = -1 5x+4y = 0 I get this step... (answered by mananth,josgarithmetic)

I need to solve the following system of linear equations with three variables. Here is... (answered by ptaylor)

I have been working a problem over and over for my online algebra class and I have also... (answered by jim_thompson5910)

Okay, First of all here is the question. "Graph the following quadratic equation {{{... (answered by lwsshak3)

We don't use any type of algebra textbooks in my algebra 1 class so how do i write an... (answered by actuary)