anonymous
  • anonymous
A system of equations is shown below: 3x − y = 2 x + y = 6 The x-coordinate of the solution to this system of equations is _____. Numerical Answers Expected! Answer for Blank 1: ----------------
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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Error1603
  • Error1603
y=-5
mathwizzard3
  • mathwizzard3
x=11
Error1603
  • Error1603
x=1

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Error1603
  • Error1603
3x+-5=-2 3x=3 x=1
mathwizzard3
  • mathwizzard3
1 - 5 doesn't equal 6 though
mathwizzard3
  • mathwizzard3
That is if you do the other equation.
Error1603
  • Error1603
I would solve for x with the first equation, then use that to solve for y in the second, then check by inputting values. 3x+y=-2 x-y=6 x=6+y
anonymous
  • anonymous
thanks
Error1603
  • Error1603
then... 3(6+y)+y=-2 18+3y+y=-2 18+4y=-2 4y=-20 y=-5
Error1603
  • Error1603
You see?
anonymous
  • anonymous
Yes. So y=-5 is the answer?
Error1603
  • Error1603
No now 3x+-5=-2 3x=3 x=1. x=1is the answer
anonymous
  • anonymous
Alrighty! Thanks.
Error1603
  • Error1603
No problem

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