Nicaioan03 Nicaioan03 19-02-2019 Matematică a fost răspuns (x+3)-(×+3)= (4x+6)-(4x-6)= -(7x-3)+(3-7x)= -(x la a doua +5x-1) (x la a doua+ 5x - 1)+5x= 7x-(3x-4x)+(x-1x) -(3x+1)+(3x-1)