anonymous
  • anonymous
For what values of x and y are the triangles congruent? Give me a minute to draw the triangles.
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
|dw:1434509034342:dw|
anonymous
  • anonymous
|dw:1434509958514:dw|
anonymous
  • anonymous
4y do I add or subtract the eights

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anonymous
  • anonymous
add
anonymous
  • anonymous
4y =18
anonymous
  • anonymous
4y=16
anonymous
  • anonymous
yes 16, so y is?
anonymous
  • anonymous
4
anonymous
  • anonymous
right. The next equation is \[5x-5y=2y+7\] plug in 4 for y and solve for x
anonymous
  • anonymous
So I set up as 5x-5y(4)=2(4)+7
anonymous
  • anonymous
yeah, just leave out the y on the left 5x-5(4)=2(4)+7
anonymous
  • anonymous
ok
anonymous
  • anonymous
5x-20=8-7
anonymous
  • anonymous
8+7 on the right
anonymous
  • anonymous
ok 5x-20=15
anonymous
  • anonymous
yes
anonymous
  • anonymous
now do I subtract 15x from 20
anonymous
  • anonymous
add 20 to both sides so you have the x isolated on one side and numbers on the other side
anonymous
  • anonymous
Do I add 20 to 20 or 5, and 20 to 15
anonymous
  • anonymous
to 15|dw:1434511201361:dw|
anonymous
  • anonymous
the answer selection is x=-4,y=-4 x=-4,y=4 x=4,y=7 x=7,y=4
anonymous
  • anonymous
so choice #3 would be the answer
anonymous
  • anonymous
look at the equations we solved. We got y = 4 and x = 7
anonymous
  • anonymous
ok, got you thanks for helping
anonymous
  • anonymous
you're welcome

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