Question

(25PTS) AJUDEM EU POR FAVOR

(3x-5y+7)+(2x-3y-6)-(-x-y-1)

Answer 1

(3x-5y+7)+(2x-3y-6)-(-x-y-1)
3x-5y+7+2x-3y-6+x-y-1
3x+2x+x-5y-3y-y+7-6-1
6x-7y+2

Answer 2

(3x-5y+7)+(2x-3y-6)-(-x-y-1)=0
3x-5y+2y-3y+x-y=1+6-7
3x+x+5y+2y-3y-y=0
4x+3y=0