Solve using the method of substitution. ( i) ` 2x-3y =7,5x +y=9` (ii) ` 1.5x+ 0.1 y =6.2,3x -0.4y=11.2 ` (iii) ` 10% of x +20% of y =24, 3x-y=20 ` (iv) ` sqrt2x -sqrt 3y =1, sqrt 3x -sqrt 8y =0`
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The value of x =`sqrt 8 and y=sqrt3 `
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