1) 8(х+5)-7х-39=8х+40-7х-39=х+1
2) 7(2х-8)-12х+58=14х-56-12х+58
=2х+2=2(х+1)
3) 6(-3х-3)+21х+21=-18х-18+21х+21
=3х+3=3(х+1)
4) 5(-4х+1)+24х-1=-20х+5+24х-1=4х+4 =4(х+1)
1) 8(х+5)-7х-39=8х+40-7х-39=х+1
2) 7(2х-8)-12х+58=14х-56-12х+58
=2х+2=2(х+1)
3) 6(-3х-3)+21х+21=-18х-18+21х+21
=3х+3=3(х+1)
4) 5(-4х+1)+24х-1=-20х+5+24х-1=4х+4 =4(х+1)