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MichaelaRose
Group Title
Explain how to get x=3 from the equation:
(5x  1)/2 + (3x  1)/4 = 9/2
 2 years ago
 2 years ago
MichaelaRose Group Title
Explain how to get x=3 from the equation: (5x  1)/2 + (3x  1)/4 = 9/2
 2 years ago
 2 years ago

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saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{5x1}{2} + \frac{3x1}{4} = \frac92\]that?
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
Ok, find the LCD of the left side. it will be 4. so we can write as, \[\frac{2(5x1) +(3x  1)}{4} = \frac92\]Agree?
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
Okay..
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
Now try solving further..
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
Simplify the top?
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
\[(10x1) +(3x1)/4 =9/2\]
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
a mistake, it's 10x  2
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
oh yeah, that's what I meant haha
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
ok.. move forward..
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
\[7x3/4 = 9/2\]
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
good going.. now cross multiply.
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
dw:1335241220694:dw
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
\[14x  6 = 36\]
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
Oh, okay. So then I add six to both sides?
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
Perfect..
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
then I divide both sides by 14 and get x=2.78
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
seems correct.
 2 years ago

MichaelaRose Group TitleBest ResponseYou've already chosen the best response.1
Thanks! (:
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.1
Welcome.
 2 years ago
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