Question:`a^1x+b^1y=c^1` `a^2x+b^2y=c^2}` `x=0 y` `a_1=2,b_1=3,c_1=7, a_2=5,b_2=-2,c_2=8` 

Answer x=0(i) 0,`a_1+b_1y`=`c_1` (ii) 0=`a_2+b_2y`=`c_2` `b_1y`=`c_1` `b_2y`=`c_2`/b_1y+b_2y`=`c_1+c_2` `y(b_1+b_2)`=`c_1=c_2` :. y=`c_1+c_2/b_1+b_2`(Ans) 

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`a^1x+b^1y=c^1` `a^2x+b^2y=c^2}` `x=0 y` `a_1=2,b_1=3,c_1=7, a_2=5,b_2=-2,c_2=8`
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