anonymous
  • anonymous
What is the value of the y variable in the solution to the following system of equations? 3x - 6y = 12 -2x + 3y = 6 -14 24 14 -24
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
my technique is kind of different from most of the people's.
anonymous
  • anonymous
I'll write down the steps.
anonymous
  • anonymous
To begin with, I chose to get rid of x first. so I would multiply by -2 on the first equation and 3 on the second equation. and that becomes -6x+12y=-24 -6x+9y =18

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anonymous
  • anonymous
and you change the signs on the second equation, and that will give you, -6x+12y=-24 6x-9y =-18
anonymous
  • anonymous
you add them. 3y=-42 y=-14
anonymous
  • anonymous
now since you got the value of y, you plug in to whatever equation you want to plug in it to. let's plug in the y value to the second equation. (easier numbers) -2x+3(-14)=6 -2x-42=6 -2x=48 x=-24
anonymous
  • anonymous
oh yeah, they wanted you to find y value that's great! then it's going to y=-14
anonymous
  • anonymous
Thanks so much! :)
anonymous
  • anonymous
sure

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