6*(b-3)=10-2*(b+2) и 83+5*(у-3)=3*(8у-9)

6*(b-3)=10-2*(b+2) и 83+5*(у-3)=3*(8у-9)

  • 6 * (b — 3) = 10 — 2 * (b + 2)
    6b — 18 = 10 — 2b — 4
    6b + 2b = 10 + 18 — 4
    8b = 28 — 4
    8b = 24
    b = 24 : 8
    b = 3
    Ответ: b = 3
  • 6*(b-3)=10-2*(b+2)
    6b-18=10-2b-4
    6b+2b=18+10-4
    8b=24
    b=24/8
    b=3
    83+5*(у-3)=3*(8у-9)
    83+5y-15=24y-27
    5y-24y=-83+15-27
    -19y=-95
    y=-95/-19
    y=5