I need help solving a system of equations Choose the correct graph of the given system of equations. y − 2x = −1 x + 3y = 4 I'm not looking for the answer, I would like someone to push me in the right direction. Thanks
I didn't post the options
first put each of the equations in y=mx+b form
would I add y to both sides to accomplish that?
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wait
y would u wanna do that? just leave the y alone and move the -2x to the other side n u can do this by adding 2x on each side :)
Now I see
3y= -x + 4 divide both sides by 3 y= -x+ 1.3 is that right?
Remember that when you divide 3 to both sides, the whole equation is divided by 3, including x.
for the second equation: y=-1/3x+4/3\[y=-\frac{ 1 }{ 3 } x + \frac{ 4 }{ 3 }\]
Do you understand that part?
Ehhhhhhh.... No
I swear this is only because it's math
No problem, I'll explain. So your starting equation is: \[x + 3y = 4\]
And you want it to look more normal, meaning you just want a y= bla bla bla
right
So to go about that, you will want y by itself. Right?
subtract x from both sides.
Good! |dw:1470859273254:dw|
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