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4x+6y=3xy,8x+9y=5xy |
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Answer» Let us try to make 8x in both equationsTherefore multiply equation with 4x by 2 to make it = 8x2 x (4x + 6y = 3xy)8 x + 12 y = 6 xy .............. i8x + 9y = 5xy ....................... iii - ii3y = xy3 = xPutting the value of x in ii24 + 9y = 5x3y24 = 15y - 9y24 = 6yy = 4x = 3\xa0 Multiply 1st equation by 2Then subtract equation 2 from equation 1 ( multiplied by 2 )We will get x=3 and y=4 |
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