anonymous
  • anonymous
which value of x makes the open sentence true? 7-x=3x+5 A.x=1.5 B.x=2 C.x=0.5 D.x=3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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iwillrektyou
  • iwillrektyou
Is it asking for you to solve for x?
iwillrektyou
  • iwillrektyou
If so, just do inverse operations.
anonymous
  • anonymous
taking like terms, you will have 7-5=3x+x

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anonymous
  • anonymous
2=4x
anonymous
  • anonymous
\[\frac{ 2 }{ 4 }=x\]
anonymous
  • anonymous
so, x=0.5
iwillrektyou
  • iwillrektyou
So I would subtract 7 on both sides, so -x=3x-2. Then, I would subtract 3x on both sides --> -4x = -2. Make both sides positive by dividing -1 on each side --> 4x = 2. Divide 4 on each side --> x = 0.5

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