2x+6=11+3(4x+5)
60 кг-4%
60:4=15
15*100=1500
Ответ.1500 кг на 4%
...=3а+5а-7в=8а - 7в
...=-зq-8p+3q= -- 8p
...= -8c+4+4= -8c+8
...=5b-6b-a-a+6b= 5b-a-a