1.

Solve c part of question 1 by step by step simultaneous equation

Answer»

ANSWER:

let 1/(x+1) =a

1/(y-1) =b

we get

20a+4b=5 and 10a-4b=1

solving these TWO equations by elimination method

4b and -4b GETS cancelled

we get

30a=6

a=6/30

a=1/5

substituting a value in one equation

20(1/5) +4b=5

4+4b=5

4b=5-4

b=1/4

we 1/(x+1) =1/5

x+1=5

x=4

1/y-1=1/4

y-1=4

y=5


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