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August 20th, 2017, 09:44 AM   #1
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Stuck with a reduction problem

I'm trying to reduce this as much as possible, to find X, and this is what I have so far, but my teacher told me that I did something wrong between some of the lines, I just can't figure out what I've done wrong. Could someone possibly help me out?

6x-(x-(x+4)) = 3x+2
6x-(x-x+4) = 3x+2
6x-x+x-4 = 3x+2
6x-x+x-3x = 2+4
3x = 6
x = 0,5
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August 20th, 2017, 09:55 AM   #2
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Quote:
6x-(x-(x+4)) = 3x+2
6x-(x-x+4) = 3x+2
6x-(x-(x+4)) = 3x+2

6x-(x-x-4) = 3x+2

6x-x+x+4 = 3x+2

can you finish?
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August 20th, 2017, 10:35 AM   #3
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Math Focus: सामान्य गणित
$\displaystyle -(+) =-$
$\displaystyle -(-) =+$
$\displaystyle +(+)=+$
$\displaystyle +(-) = -$
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