Question

12Х-16 больше или=11Х+2(3Х+2)

Answer 1

12х - 16 >= 11х + 2(3х + 2)

12х - 16 >= 11х + 6х + 4

12х - 16 >= 17х + 4

12х - 17х >= 4 + 16

-5х >= 20

х >= 20 : (-5)

х >= - 4