Q40 of 52 Page 3

Find four solutions for the following equation: x = 0.

The equation x = 0, y can have any values.
For x = 0, y can have values 1, 2, 3, 4, ………
∴ The four solutions of the given equations are x = 0, y = 1; x = 0, y = 2; x = 0, y = 3; and x = 0, y = 4.

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38 Find four solutions for the following equation: x + y = 0 39 Find four solutions for the following equation: x - y = 0 41 Find the solutions of the form x = a, y = 0 and x = 0, y = b for each of the following pairs of equations. 
         Do they have any common such solution?
         (i)   3x + 2y = 6 and 5x - 2y =10
         (ii)  5x + 3y = 15 and 5x + 2y =10
         (iii) 9x + 7y = 63 and x - y =10 42  Find the value of a so that the equation  x - y = a  may have x = 1, y = 1 as a solution