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2x + 3y = 7 (a+b) x + (2a-b) y = 21 |
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Answer» Here, (a + b)/2 = 21/7 = 3 (a + b) = 6 ------(1) again, (2a - b) = 9 --------(2) solve equations (1) and (2) 3a = 15 Hence, if a = 5 and b = 1 then , infinitely many solutions possible of given equations. |
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