5(4,5-1)=5,7-0,5(х-20)

2(0,18х-1,7)=3(0,04х-0,12)+8,96

1) 22,5-5=5,7-0,5х+1017,5=15,7-0,5х-0,5х=17,5-15,7-0,5х=1,8х=1,8:(-0,5)х= -3,62) 0,36х-3,4=0,12х-0,36+8,960,36х-0,12х=8,6+3,40,24х=12х=12:0,24х=50