1.

2x+3y+8=0 x-y-1=0. in substitution method

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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