Question

(x - 3) - (x + 2) +2 (x - 1) -5 =0

PRECISO URGENTEE!!!

Answer 1

vamos lá...

$(x-3)-(x+2)+2(x-1)-5=0 \\ x-3-x-2+2x-2-5=0 \\ \not x-\not x+2x-12=0 \\ 2x=12 \\ x=12\div2 \\ x=6 \\ \\ S=\{6\}$