## anonymous 4 years ago solve for for X and Y. given the that 4x^(2)-3Y=0 and 6X-2Y=3

1. anonymous

solve for y in the second equation so you have y=3x-3/2 then substitute y into the first equation. solve for x. when you have x substitute it in and solve for y

2. anonymous

by substituting into the first equation you have 4x^2-3(3x-3/2)=0

3. anonymous

i tried using substitution and but i solved for x in the frist equation getting x=$(\sqrt{3y})/2$ then i plugged it into the 2nd equation and solved for y getting y=.75 and 3 is that i all that i need to?

4. anonymous

you can do that, but you have to remember that when you take a square root, you have to use the positive and the negative. that's why i used the second equation to solve for y and substituted that in, because it's simpler

5. anonymous

ok makes sense thank you for your help

6. anonymous