Question

Pair of linear equations in two variables

Answer 1

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Answer 2

Step-by-step explanation:

Substitute (1/x) as a and (1/y) as b

(5/2)a+(2/3)b=7

(15a+4b)/6=7

15a+4b=42----(equation 1)

3a+2b=12-----(equation 2)×2

6a+4b=24------(equation 3)

Subtracting equation 2 from 1

15a-6a+4b-4b=42-24

9a=18

a=2

putting a=2 in equation 2

3(2)+2b=12

6+2b=12

2b=6

b=3

a=(1/x)=2 , x=(1/2)

b=(1/y)=3 , y=(1/3)