ineedhelp10
  • ineedhelp10
help please asap!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
ineedhelp10
  • ineedhelp10
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ineedhelp10
  • ineedhelp10
@timo86m help pelase?
ineedhelp10
  • ineedhelp10
@timo86m *please?

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anonymous
  • anonymous
for i think they subtracted 1 time row 1 from row 3
ineedhelp10
  • ineedhelp10
wait what do you mean? im sorry your sentence didn't make quite sense
anonymous
  • anonymous
for step 1 sorry R3- (-R1)
ineedhelp10
  • ineedhelp10
ah okay and then for the second step i know they switched the rows
ineedhelp10
  • ineedhelp10
but what about from 2 to 3?
ineedhelp10
  • ineedhelp10
@timo86m um sorry ?
anonymous
  • anonymous
2 swap R1 and R3
ineedhelp10
  • ineedhelp10
got it
anonymous
  • anonymous
3 R2+3*R1
ineedhelp10
  • ineedhelp10
ah okay got it makes sense
ineedhelp10
  • ineedhelp10
@SolomonZelman help on the 4th step please?
anonymous
  • anonymous
glad i could help I gotta go tho :)
ineedhelp10
  • ineedhelp10
aww but i just need help on step 4
ineedhelp10
  • ineedhelp10
@timo86m please :/
ineedhelp10
  • ineedhelp10
@tkhunny can you please help me on step 4?
ineedhelp10
  • ineedhelp10
@timo86m yay you're back!!
ineedhelp10
  • ineedhelp10
@timo86m please help me on the last 3 steps, i know on step 4 you multiply 5 by the first row and then add it to the third row
ineedhelp10
  • ineedhelp10
i just need help on step 5,6, and 7
anonymous
  • anonymous
5*R1+R3 I think thats it tho i gotta go
ineedhelp10
  • ineedhelp10
wait nooo what about step 5??
anonymous
  • anonymous
i think you add R2 to R3
anonymous
  • anonymous
R3+R2
ineedhelp10
  • ineedhelp10
are you sure? that doesn't quite add up tho
anonymous
  • anonymous
no wait you subtract
anonymous
  • anonymous
R3-R2
ineedhelp10
  • ineedhelp10
it's -1r2+r3
anonymous
  • anonymous
R3-R2
ineedhelp10
  • ineedhelp10
and what about step 6? sorry:/
anonymous
  • anonymous
In other words R3+(-R2)
anonymous
  • anonymous
R2+c(R1) where c is a constant that would make the left most number in Row 2 work let me think
ineedhelp10
  • ineedhelp10
what? whats the pattern?
anonymous
  • anonymous
no wait all that happen is that R2 was divided by 2 R2/2
anonymous
  • anonymous
by -2 actually
anonymous
  • anonymous
and lastly division by -9
ineedhelp10
  • ineedhelp10
ah okay it all makes sense now!!! thank you so much!!! i really appreciate it!!
anonymous
  • anonymous
you are welcome i gotta go now :)

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