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dannielle
Group Title
What is the solution to the rational equation 4/3+3/x+5=21/3x+15 ?
 2 years ago
 2 years ago
dannielle Group Title
What is the solution to the rational equation 4/3+3/x+5=21/3x+15 ?
 2 years ago
 2 years ago

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henkjan Group TitleBest ResponseYou've already chosen the best response.0
4/3+3/x+5 = 21/3x + 15 4/3+5 + 3/x = 7/x + 15 4/3+515 = 7/x+3/x 8  2/3 = 10/x x = 10/(82/3)
 2 years ago

TracysaurusRex Group TitleBest ResponseYou've already chosen the best response.0
\[4/3+3/x+5=21/3x+15\] First you simplify the equation by combining like terms and simplifying fractions: \[6 \frac{1}{3} +\frac{3}{x}=\frac{7}{x}+15\] Then you use the subtraction property of equality and subtract \[(\frac{3}{x}+15)\]from both sides and get: \[8\frac{1}{3}=\frac{4}{x}\] When you multiply both sides by x you get: \[\frac{25}{3}x=4\] Divide both sides by the coefficient of x to get that \[x=\frac{12}{25}\] :)
 2 years ago

jhonyy9 Group TitleBest ResponseYou've already chosen the best response.1
4/3 + 3/(x+5) =21/(3x+15) 4(x+5)+9 21  =  3(x+5) 3(x+5) 4x+20+9=21 4x+29=21 4x=2129 4x=8 x=8/4 x=2
 2 years ago
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