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Mathematics 14 Online
OpenStudy (anonymous):

3x-3y=2 and x+7=6

OpenStudy (sawpnilsrabon):

3x-3y=2 and x+7=6 Now x+7=6 x=6-7 x=-1--------(a) given 3x-7y=2-------(b) (3*-1)-7y=2 -3-7y=2 -7y=2+3 -7y=5 y=-5/7 y=-.714 Now we are going y value put in (b) no equation 3x-5/7*7=2 3x-5=2 3x=2+5 3x=7 x=7/3 x=2.33 Ans (x, y)= (2.33, -0.714)

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