Q49 of 54 Page 77

Solve for u and v – : 2(3u – v) = 5uv and 2(u + 3v) = 5uv

Equation (1)

2 (3u – v) = 5uv


6u – 2v = 5uv ……(1)


Equation (2)


2 (u + 3v) = 5uv


2u + 6 v = 5uv ……(2)


Put value of 5uv from (1)


6u – 2v = 2u + 6v


6u – 2u = 6v + 2v


4u = 8v



u = 2v


Put u = 2v in (1)


6 (2v) – 2v = 5 (2v)v


12v – 2v = 10v2



v = 1


Also, u = 2v


u = 2 × 1


u = 2


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