anonymous
  • anonymous
which is the solution to the equation 3x -4=5(x-4)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
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anonymous
  • anonymous
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
what do you have so far
jim_thompson5910
  • jim_thompson5910
absolute value? I don't see any absolute value bars in the original problem `3x -4=5(x-4)`

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More answers

anonymous
  • anonymous
Mistake on my part.
jim_thompson5910
  • jim_thompson5910
can you draw out the full problem?
anonymous
  • anonymous
\[3x-4=5(x-4)\]
anonymous
  • anonymous
like that?
jim_thompson5910
  • jim_thompson5910
are there any vertical bars in the problem?
anonymous
  • anonymous
I made a big mistake. Hold on.
anonymous
  • anonymous
x=0?
anonymous
  • anonymous
X=0 because different multiplications of X are being subtracted by 4. 3x3=9-4=5 5x3=15-4=9 5 does not equal 9. 3x0=0-4=-4 and 5x0=0-4=-4 but negative 4 equals negative 4 so the answer is X= 0?
jim_thompson5910
  • jim_thompson5910
is it possible to post a screenshot? that would clear up all confusion
anonymous
  • anonymous
The question isn't online.
jim_thompson5910
  • jim_thompson5910
oh it's on paper, I see
jim_thompson5910
  • jim_thompson5910
I'm going to assume there is no set of absolute value bars The first step is to distribute the 5 through 3x -4=5(x-4) 3x -4=5*x-5*4 3x -4 = 5x - 20 with me so far?
anonymous
  • anonymous
There are no bars. I am with you
jim_thompson5910
  • jim_thompson5910
ok now we need to move the x terms over to one side. Say the left side
jim_thompson5910
  • jim_thompson5910
|dw:1443245964641:dw|
jim_thompson5910
  • jim_thompson5910
subtract 5x from both sides |dw:1443246000337:dw|
jim_thompson5910
  • jim_thompson5910
notice the 5x terms cancel on the right side |dw:1443246026894:dw|
anonymous
  • anonymous
Oh ok!
jim_thompson5910
  • jim_thompson5910
what is 3x-5x equal to?
anonymous
  • anonymous
243? Probabaly wrong. defiantly
jim_thompson5910
  • jim_thompson5910
you're just subtracting
jim_thompson5910
  • jim_thompson5910
no exponents are involved
anonymous
  • anonymous
Explain a little more? My brain is about to shut down on me lol I can barely think, im so tired.
jim_thompson5910
  • jim_thompson5910
I'm sure you know how to do 5-3 ?
jim_thompson5910
  • jim_thompson5910
think of it like that, but the result will be negative
anonymous
  • anonymous
yes I do lol
anonymous
  • anonymous
-2 then
jim_thompson5910
  • jim_thompson5910
you have 3 dollars in your pocket you buy something worth $5 you'll be 2 dollars in debt
jim_thompson5910
  • jim_thompson5910
so 3x-5x = -2x
jim_thompson5910
  • jim_thompson5910
-2x - 4 = -20
jim_thompson5910
  • jim_thompson5910
now add 4 to both sides to move that 4 over
anonymous
  • anonymous
But thats not the final answer?
jim_thompson5910
  • jim_thompson5910
no
anonymous
  • anonymous
How do I add four to both sides? LOL ugh..
jim_thompson5910
  • jim_thompson5910
Yeah I know, I'm being a pain. But it's good to know how to do this stuff |dw:1443246705151:dw|
jim_thompson5910
  • jim_thompson5910
|dw:1443246723579:dw|
jim_thompson5910
  • jim_thompson5910
|dw:1443246739406:dw|
jim_thompson5910
  • jim_thompson5910
what would -20+4 simplify to?
jim_thompson5910
  • jim_thompson5910
it would be similar to -5+3 like you did last time
anonymous
  • anonymous
-24?
anonymous
  • anonymous
or -16?
jim_thompson5910
  • jim_thompson5910
-16 actually start at -20. Then move 4 spots to the right (because of the +4)
jim_thompson5910
  • jim_thompson5910
we now have this equation -2x = -16
jim_thompson5910
  • jim_thompson5910
|dw:1443246871534:dw|
jim_thompson5910
  • jim_thompson5910
|dw:1443246883800:dw|
jim_thompson5910
  • jim_thompson5910
|dw:1443246918084:dw|
anonymous
  • anonymous
ok.
jim_thompson5910
  • jim_thompson5910
the last thing needed to be done is dividing -16 over -2
anonymous
  • anonymous
-8? maybe?
jim_thompson5910
  • jim_thompson5910
the two negatives divide to a positive
jim_thompson5910
  • jim_thompson5910
just like how (-2) times (-2) = +4 similar to negative times negative = positive
anonymous
  • anonymous
So its either x=8 or x=0.
dm91
  • dm91
x=8
jim_thompson5910
  • jim_thompson5910
0? how are you getting that?
anonymous
  • anonymous
Thats just one of the options for an answer.
jim_thompson5910
  • jim_thompson5910
I see
dm91
  • dm91
ok -16/-2= 8 because a -n and -n = +n.
anonymous
  • anonymous
I kind of explained my answer for it possibly being 0 above.
anonymous
  • anonymous
X=0because different multiplications of X are being subtracted by 4. 3x3=9-4=5 5x3=15-4=9 5 does not equal 9. 3x0=0-4=-4 and 5x0=0-4=-4 but negative 4 equals negative 4 so the answer is X= 0
jim_thompson5910
  • jim_thompson5910
well when you said -8, you were close but it's actually +8 or just 8 since negative/negative = positive
anonymous
  • anonymous
Final answer 8?
jim_thompson5910
  • jim_thompson5910
yeah
dm91
  • dm91
|dw:1443246869026:dw|

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