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7x + 6y + 4z = 122 4x + 5y + 3z = 88 |
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Answer» `x GT y` ` 4x+5y+3z = 88 …………….(2)` ` 9x + 2y + x = 78 ……………….(3)` From (1) and (2) `rArr5x -2y = 4-(a)` From (2) and (3) ` rArr23x+y = 146 -(b)` From (a) and (b) ` rArr x = 6, y = 8`.Put VALUES in eqn (3) ` rArrz = 8` |
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