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gaby236 Group TitleBest ResponseYou've already chosen the best response.0
i need help
 one year ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
solve for y
 one year ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
2/5 9/80 3.5 i think a
 one year ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
1) Wite down \[y \ne 0\]2) Multiply everything by y. 3) Multiply everything by 7 4) Multiply everything by 3 5) Multiply everything by 2 There are other ways to proceed. This is just one with what I hope is an obviuos goal.
 one year ago

jayz657 Group TitleBest ResponseYou've already chosen the best response.0
lets simplify the left side first factor in the 3 and get 3y+ 21 so you have (3y + 21 / 7y) (4y 7/6) find common denominator so it will be like this [6(3y+21)  7y(4y 7) ] / 7y simplifying [18y + 126  28y^2 + 49 ] / 7y [ 28y^2 + 18y + 175 ]/7y now lets simplify right side multiply in the 2 14y 2 / 21 find common denominator [21(7y+10)  3y(14y  2)] / 63y simplify [147y + 120  42y^2 + 6y] / 63y [42y^2 + 153y + 120 ] / 63y now your equation looks like this: [28y^2 + 18y + 175]/7y = [42y^2 + 153y + 120]/63y cross multiply 63y[28y^2 + 18y + 175] = 7y [42y^2 + 153y + 120] cancel out 7y on both sides 9[28y^2 + 18y + 175] = 42y^2 + 153y + 120 multiply in 9 252y^2 + 162y + 1575 = 42y^2 + 153y + 120 simplify 210y^2  9y + 1455 = 0 factor using quadrictic formula should give you your answer
 one year ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
is correct my answer
 one year ago

jayz657 Group TitleBest ResponseYou've already chosen the best response.0
sorry i might of made a mistake in that math but the process of doing it is correct
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
wolfram told me the answer is 2/5 :) u are correct http://www.wolframalpha.com/input/?i=%283%28y%2B7%29%2F7y%29%28%284y7%29%2F6%29%3D%28%287y%2B10%29%2F3y%29%282%287y1%29%2F21%29&dataset=
 one year ago
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