ответ: х=-5
17x-8=20x+7
17x-20x=7+8
-3x=15
x= 15/(-3)
x=-5
17x-8 = 20x+7
17x-20x = 8+7
-3x = 15
x = -(15/3)
x = -5
ответ: -5
ответ: х=-5
17x-8=20x+7
17x-20x=7+8
-3x=15
x= 15/(-3)
x=-5
17x-8 = 20x+7
17x-20x = 8+7
-3x = 15
x = -(15/3)
x = -5
ответ: -5