anonymous
  • anonymous
matrix help please, picture in comments
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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ganeshie8
  • ganeshie8
\(4X+A=B \implies X = \dfrac{B-A}{4}\)
ganeshie8
  • ganeshie8
so simply subtract first matrix from the second, then divide by 4

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More answers

anonymous
  • anonymous
i came up with -3/4 -7/4 -1 1/4 3/4 0 @ganeshie8
ganeshie8
  • ganeshie8
doesnt look correct, try again
ganeshie8
  • ganeshie8
seems you have worked \(A-B\) instead of \(B-A\)
anonymous
  • anonymous
1 -3 -7 2 -4 1 3 3 0
anonymous
  • anonymous
exclude the 123
ganeshie8
  • ganeshie8
\(B-A = ?\)
anonymous
  • anonymous
my answer isnt apart of my choices
ganeshie8
  • ganeshie8
again you're doing A-B, which is wrong
anonymous
  • anonymous
hmmm. i dont know/see what im doing.
ganeshie8
  • ganeshie8
lets start over
ganeshie8
  • ganeshie8
you're given that \(4X+A=B\) can you isolate \(X\) from above eqn ?
anonymous
  • anonymous
so i reversed it and i have 3 7 4 -1 -3 0
ganeshie8
  • ganeshie8
why ?
anonymous
  • anonymous
i put b first like you said. thats what i came up with
ganeshie8
  • ganeshie8
good, next what you wana do
anonymous
  • anonymous
isnt that it?
anonymous
  • anonymous
divide by 4. end up with d. @ganeshie8
ganeshie8
  • ganeshie8
Looks good!

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