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2x+3y+8=0 x-y-1=0. in substitution method |
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Answer» 2x +3y=-8. ------(1)x-y. =1. ---------(2) Multiply equ (2) by 2. 2x+3y = - 8 - 2x+2y. =-2------------------- 5y. =-10 y=-2 when y=-2 , 2x +3y =-82x -6. =-82x=-2 x=-1 x,y ={ -1 , -2} |
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