5(х-4)= х+8
5х - 20 = х+8
5х - х = 8+20
4х = 28
х=28/4
х= 7
9- 7(х+3) = 5 -6х
9 - 7х - 21 = 5 -6х
-7х - 12 = 5-6х
-7х +6х = 5+12
-х=17
х=-17
(7x+9)-(11x-7)=8
7х+9-11х+7-8=0
-4х+8=0
-4х=-8
х=2
5(х-4)= х+8
5х - 20 = х+8
5х - х = 8+20
4х = 28
х=28/4
х= 7
9- 7(х+3) = 5 -6х
9 - 7х - 21 = 5 -6х
-7х - 12 = 5-6х
-7х +6х = 5+12
-х=17
х=-17
(7x+9)-(11x-7)=8
7х+9-11х+7-8=0
-4х+8=0
-4х=-8
х=2