anonymous
  • anonymous
2x - y = 1, if x = -1, then y = ? thank you<3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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UsukiDoll
  • UsukiDoll
So your question is 2x - y = 1, if x = -1, then y = ? correct?
UsukiDoll
  • UsukiDoll
so we need to solve for y. Since we are given x = -1 you plug it into the equation and solve for y
anonymous
  • anonymous
2x - (-1) = try this

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UsukiDoll
  • UsukiDoll
so can you plug in x = -1 for this equation 2x - y = 1?
anonymous
  • anonymous
the answer is -3 haha. thanks!
UsukiDoll
  • UsukiDoll
I'll check just to be sure 2(-1)-y =1 -2-y=1 +2 +2 -y=3 y= -3 yes you are correct :)
UsukiDoll
  • UsukiDoll
so x = -1 , y = -3 2(-1)-(-3) =1 -2+3=1 1=1 yup checks out :) good job!

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