Question

Solve this
8v + 20u = 1 and 9v + 18u = 1

Answer 1

8V +20U = 1

8V = 1-20U

V = 1-20U/8........(1)

9V +18U = 1.........(2)

Putting the value of V in equation (2)

9V+18U = 1

9(1-20U/8) + 18U = 1

9-180U/8 + 18U = 1

9- 180U + 144U/8 = 1

-36U = 8-9

U = 1/36 .....(3)

putting the value of U in equation (1)

V = 1-20U/8

V = 1-20×1/36/8 = 1/18

HENCE,

V = 1/18 AND U = 1/36



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