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Solve the following simultaneous equations. 101x + 99y = 501, 99x + 101y = 499 |
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Answer» 101x + 99y = 501 .............(I) 99x + 101y = 499 .............(II) Adding equations (I) and (II) and dividing by 200 x + y = 5 .............(III) Subtracting (II) from (I) and dividing by 2 x - y = 1 ............(IV) Solving equations (III) and (IV), x = 3 y = 2 |
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