Question

1/x + 1/27-x = 3/20​

Answer 1

Answer:

12 or 15

Step-by-step explanation:

1/x+1/(27-x)=3/20

(27-x+x)/x(27-x)=3/20

3x(27-x)=27×20

81x-3x2=540

x2-27x+180=0

x=(27+or-3)÷2

x=(27+3)÷2=15

or, (27-3)÷2=12

x=12 or 15

Answer 2

Step-by-step explanation:

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