8x-12,8=0
8x=12,8
x=12,8/8
х=1,6
12-x=2-5
– x = – 5 + 2 – 12
-x = -15
x = 15
9x-(6x+10)=20
9x – 6x – 10 = 20
9x – 6x = 20 + 10
3x = 30
x = 10
4(x-1)=3x+(x-4)
4x – 4 = 3x + x – 4
4x – 3x – x = – 4 + 4
Уравнение имеет множество решений
8x-12,8=0
8x=12,8
x=12,8/8
х=1,6
12-x=2-5
– x = – 5 + 2 – 12
-x = -15
x = 15
9x-(6x+10)=20
9x – 6x – 10 = 20
9x – 6x = 20 + 10
3x = 30
x = 10
4(x-1)=3x+(x-4)
4x – 4 = 3x + x – 4
4x – 3x – x = – 4 + 4
Уравнение имеет множество решений