anonymous
  • anonymous
Find the solution of this system of equations. separate the x-and y- values with a comma. x=8+y -2x+6y=-20 (I think I messed up when trying to solve.)
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
x=8+y -2x+6y=-20 ?
anonymous
  • anonymous
Problem: Solve x=8+y;−2x+6y=−20 Steps: I will try to solve your system of equations. x=y+8;−2x+6y=−20 Step: Solve x=y+8 for x: Step: Substitute (y+8) for x in −2x+6y=−20: −2x+6y=−20 −2(y+8)+6y=−20 4y−16=−20(Simplify both sides of the equation) 4y−16+16=−20+16(Add 16 to both sides) 4y=−4 4y4=−44(Divide both sides by 4) y=−1 Step: Substitute (−1) for y in x=y+8: x=y+8 x=−1+8 x=7(Simplify both sides of the equation) Answer: x=7 and y=−1
anonymous
  • anonymous
yes and thank you

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anonymous
  • anonymous
yup
anonymous
  • anonymous
wait it says that it is wrong.
anonymous
  • anonymous
it shouldn't be hold on let me re calculate
anonymous
  • anonymous
are you graphing it?
anonymous
  • anonymous
no
anonymous
  • anonymous
my calculations where right i just went over them
anonymous
  • anonymous
I am not sure then but its okay thanks anyways.

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