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Crank
3 years ago
13

6x-2y=24 how do u solve for y

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0
It's <span>Diophantine equation. 
First, we need to found gcd(6,(-2)):</span>
6=2*3
(-2)=(-1)*2

So, gcd(6,-2)=2
Now, the question is. Can we dived c=24, by gcd(6,-2) and in the end get integer?
Yes we can.
\frac{24}{2} =12
So, we can solve it.

Now is the formula:
{\displaystyle {\begin{cases}x=x_{0}+n{\frac {b}{\gcd(a,\;b)}}\\y=y_{0}-n{\frac {a}{\gcd(a,\;b)}}\end{cases}}\quad n\in \mathbb {Z} .}

Second, we need the first pair (x0,y0) 
 if
x=0
then
y=(-12)

Third, we gonna use that formula:
{\displaystyle {\begin{cases}x=-n}\\y=-3(4+n)}\end{case}\quad n\in \mathbb {Z} .}
Congratulations! We solve it.


klio [65]3 years ago
5 0
6x - 2y = 24

-2y = 24 - 6x      Multiply both sides by -1

2y = 6x - 24        Divide both sides by 2

y = (6x - 24)/2

y = 6x/2 - 24/2

y = 3x - 12
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