Rearranging Equations: 3x^2 + 2y^2 = 35

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The equation 3x^2 + 2y^2 = 35 was rearranged to isolate x^2. The correct rearrangement is x^2 = 35/3 - (2/3)y^2, which simplifies to x^2 = -\frac{2}{3}y^2 + 11\frac{2}{3}. There was confusion regarding the interpretation of 11\frac{2}{3}, with clarification that it represents 11 and 2/3, not a multiplication. The discussion highlights the importance of clear notation and avoiding mixed numbers in mathematical expressions. Accurate representation of terms is crucial for solving equations correctly.
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Homework Statement



3x^{2} + 2y^{2} = 35

Homework Equations





The Attempt at a Solution


I rearrangged it for x^{2} and got -\frac{2}{3}y+11\frac{2}{3}=x^{2}
Is this right?
 
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It looks correct to me
 
I don't think it is 11(2/3)

3x^2 + 2y^2=35
3x^2 = 35 - 2y^2
x^2 = 35/3 - (2/3)y^2

but 35/3 = 11(2/3)?
11.66.. \neq 7.33..
 
cshum00 said:
I don't think it is 11(2/3)

3x^2 + 2y^2=35
3x^2 = 35 - 2y^2
x^2 = 35/3 - (2/3)y^2

but 35/3 = 11(2/3)?
11.66.. \neq 7.33..

I believe 11\frac{2}{3} meant 11 and 2/3 not 11 multiplied by 2/3
 
But it should be
x^2= -\frac{2}{3}y^2- 11\frac{2}{3}
Not
x^2= -\frac{2}{3}y- 11 \frac{2}{3}

I presume the missing exponent on y was a typo.
 
rock.freak667 said:
I believe 11\frac{2}{3} meant 11 and 2/3 not 11 multiplied by 2/3

lol. Mixed numbers. It has been so long since i last used them and it should be best to be avoided.
 
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