28-(17-3х)=6х; 14-(5х-6)=х-9;8х-(5+2х)=х+8;16-(3х-7)=х+8.помогите решить

28-(17-3х)=6х28-17+3х=6х3х-6х=-28+17-3х=-11х=(-11):(-3)х=3,614-(5х-6)=х-914-5х+6=х-9-5х-х=-9-14-6-6х=-29х=(-29):(-6)х=4,8