DJBreezy
  • DJBreezy
What is the solution to the system of equations? 4X+Y=2 X-Y=3 ( , ) @black_ninja123
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
If X-Y=3..how can you change this equation to show what Y equals?
DJBreezy
  • DJBreezy
idk this..... @Black_ninja123
Black_ninja123
  • Black_ninja123
I'm not good at this

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More answers

anonymous
  • anonymous
IF X -Y =3....then if we add Y to both sides we get X= 3 +Y.....now subtract 3 from both sides and what do you get?
DJBreezy
  • DJBreezy
X=6+y
DJBreezy
  • DJBreezy
@nelsonjedi
anonymous
  • anonymous
If you subtract 3 from both sides of x=3+y ????
DJBreezy
  • DJBreezy
I really have a hard time understanding this...
anonymous
  • anonymous
|dw:1433369696385:dw|
anonymous
  • anonymous
Now you know from the second equation that y = x-3....substitute x-3 for y in the first equation and solve for x.
DJBreezy
  • DJBreezy
x=−3+y
DJBreezy
  • DJBreezy
@nelsonjedi
Jamierox4ev3r
  • Jamierox4ev3r
if y=x-3, then you could substitute. 4x+y=2 4x+(x-3)=2 ^ see what i did there? 5x-3=2 +3 +3 ------- 5x=5 /5 /5 ----- x=1
Jamierox4ev3r
  • Jamierox4ev3r
@DJBreezy you following me so far?
Here_to_Help15
  • Here_to_Help15
I never was good at this but i wont leave a User hanging :) here https://www.symbolab.com/solver/system-of-equations-calculator/4x%2By%3D2%2CX-Y%3D3/?origin=button
Jamierox4ev3r
  • Jamierox4ev3r
then once you solved for x, you can plug that into one of the simpler equations and solve for y. Once you solve for both y and x, then you will have the points
Here_to_Help15
  • Here_to_Help15
I wish it wouldnt should show the answer but the steps....
DJBreezy
  • DJBreezy
is the answer 1,-3??
Here_to_Help15
  • Here_to_Help15
No @DJBreezy
Jamierox4ev3r
  • Jamierox4ev3r
well let's see x-y=3 **plug in the value of x...x=1** 1-y=3 -1 -1 ------ -y=2 y=-2
Here_to_Help15
  • Here_to_Help15
Maybe you might wanna follow @Jamierox4ev3r a little more,and maybe,just maybe you might get an idea of how to do it on your own. :)
Here_to_Help15
  • Here_to_Help15
Great work @Jamierox4ev3r
Jamierox4ev3r
  • Jamierox4ev3r
thanks :)
Jamierox4ev3r
  • Jamierox4ev3r
Does the substitution make sense @DJBreezy ? Just find the value of one variable, then substitute it into an equation
DJBreezy
  • DJBreezy
BRUHHH.....If ur not helping y are u in my question.....everyone fails at something @Here_to_Help15

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