-7(2x+3)-(x-5)=9
-14x-21-x+5=9
-15x=9+21-5
-15x=25
x=25/(-15)
x= -5/3
-7(2х + 3) - (х - 5) = - 9 |*(-1)
14х + 21 + х - 5 = 9
15х = 7
х = 7/15
-7(2x+3)-(x-5)=9
-14x-21-x+5=9
-15x=9+21-5
-15x=25
x=25/(-15)
x= -5/3
-7(2х + 3) - (х - 5) = - 9 |*(-1)
14х + 21 + х - 5 = 9
15х = 7
х = 7/15