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fefetasprites
 one year ago
24. 2c/c4  2/1=4/c+5
I know the answer is supposed to be c=14 but I'm not really sure what the LCD is
fefetasprites
 one year ago
24. 2c/c4  2/1=4/c+5 I know the answer is supposed to be c=14 but I'm not really sure what the LCD is

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fefetasprites
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 2c }{ c4 }2=\frac{ 4 }{ c+5 }\]

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1LCD = least common denominator = (c4)*(c+5)

fefetasprites
 one year ago
Best ResponseYou've already chosen the best response.0I don't understand how that is the LCD, can you please explain?

fefetasprites
 one year ago
Best ResponseYou've already chosen the best response.0@Vocaloid are you still online? I really need help, sorry

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1the denominator of the first term is (c4), correct? the denominator of 2 is 1 the denominator of the third term is (c+5) multiply these together to find the LCD (c4)*(c+5)*1

fefetasprites
 one year ago
Best ResponseYou've already chosen the best response.0Okay, so then I have to multiply the other terms by that? Like: \[(c4*c+5) \frac{ 2c }{c4 }(c4*c+5)2=(c4*c+5)\frac{ 4 }{ c+5 }\] Is this correct?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1you need to multiply each term by the quantity that will make the denominator equal to (c4)*(c+5)*1 for example, the first term is 2c/(c4). since we already have (c4) in the denominator, we have to multiply by (c+5)/(c+5) to make the denominator equal to (c+5)*(c4)

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437776145191:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437776222377:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437776306510:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1since all the denominators are the same now, we can cancel out the denominators and look at the numerators only now (c+5)*2c  2(c4)(c+5) = 4*(c4) and now we can solve for c

fefetasprites
 one year ago
Best ResponseYou've already chosen the best response.0Oh, okay, I see what you're saying sort of So multiplied that would all be \[2c^{2}+10c2c+82c10c=4c16\] so i combine like terms and then I just solve for x?

radar
 one year ago
Best ResponseYou've already chosen the best response.0Double check your work. There is an error on the left of the equal sign. The c^2 term should of disappeared, plus there may be other errors.

fefetasprites
 one year ago
Best ResponseYou've already chosen the best response.0@Vocaloid thank you so much for helping!! @radar was I supposed to cancel out the top c in 2c/c4 along with cancelling the c4?

radar
 one year ago
Best ResponseYou've already chosen the best response.0After the combining in the numerator your fractions should appear as:dw:1437783584881:dw
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