ccchristian1
  • ccchristian1
A system of equations is shown below: Equation A: 2c = d − 8 Equation B: c = 3d + 8 Which of the following steps should be performed to eliminate variable d first? Multiply equation B by 2. Multiply equation A by 2. Multiply equation B by 3. Multiply equation A by −3.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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ccchristian1
  • ccchristian1
@geerky42
ccchristian1
  • ccchristian1
@pooja195
jim_thompson5910
  • jim_thompson5910
Fill in the box \[\Large \boxed{ \ ^ \ } \ d + 3d = 0d\]

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More answers

ccchristian1
  • ccchristian1
whats the answer
jim_thompson5910
  • jim_thompson5910
any ideas of what might go in there? something plus 3d gives 0d what is that "something" ?
ccchristian1
  • ccchristian1
b?
jim_thompson5910
  • jim_thompson5910
b plus 3d = 0d ?
ccchristian1
  • ccchristian1
no the answer
ccchristian1
  • ccchristian1
i thik its b or c
ccchristian1
  • ccchristian1
what dou think?
jim_thompson5910
  • jim_thompson5910
ok why not try this out fill in the blank \[\Large \underline{ \ \ \ \ \ } + 3 = 0\] what goes in the blank?
ccchristian1
  • ccchristian1
-3
jim_thompson5910
  • jim_thompson5910
so that applies to the 3d as well
jim_thompson5910
  • jim_thompson5910
-3d + 3d = 0d
jim_thompson5910
  • jim_thompson5910
|dw:1434769362551:dw|
ccchristian1
  • ccchristian1
so the answer is D?
jim_thompson5910
  • jim_thompson5910
|dw:1434769369508:dw|
anonymous
  • anonymous
Multiply equation A by −3
jim_thompson5910
  • jim_thompson5910
how do we turn that "d" in equation A into -3d ?
ccchristian1
  • ccchristian1
thank you.
ccchristian1
  • ccchristian1
i just need the answer
ccchristian1
  • ccchristian1
@geerky42 thats the right answer right?

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