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3x+2y=12x+3y=4 |
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Answer» Write the value of k for which the system of eq x+ y -4=0,2x+ky-3=0 has no sok 3x+2y=112x+3y=4by adding them5x+5y=15x+y=3x=3-yput the value of x3x+2y=113(3-y)+2y=119-3y+2y=119-y=11-y=11-9-y=2y=-2put the value of yx=3-yx=3-(-2)x=3+2x=5hence x=5 and y=-2 |
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