УПРОСТИТЕ 9Х+12-3Х-8. 34+(9Х-17)-4Х

Question

УПРОСТИТЕ 9Х+12-3Х-8. 34+(9Х-17)-4Х

Answer 1

9х+12-3х-8=(9-3)*х+12-8=6*х+4
34+(9х-17)-4х=34+9х-17-4х=(9-4)*х+34-14=5*х+20