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Solve the following systems of equations: 4/x +15y =21 ; 3/x +4y = 5

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asked Feb 3, 2018 in Mathematics by sforrest072 (157,439 points) ● 63 ● 448 ● 1286
edited Mar 5, 2018 by faiz
Solve the following systems of equations:
4/x +15y =21
3/x +4y = 5

1 Answer

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answered Feb 3, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 23
selected Feb 3, 2018 by sforrest072
 
Best answer

The given system of equation is

Multiplying equation (i) by 3 and equation (ii) by 4, we get

Subtracting equation (iii) from equation (iv), we get

Hence, solution of the given system of equation is x = 1/3, y= -1

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