в) 5x-4,5=3x+2,5
5x – 3x = 2,5 + 4,5
2x = 7
x = 3.5
г) 2x-(6x-5)=45
2x – 6x + 5 = 45
2x – 6x = 45 – 5
-4x = 40
x = -10
а) 1/3x = 12
x = 12 * 3
х= 36
б) 6x-10,2=0
6x = 10,2
x = 10,2 : 6
x = 1,7
в) 5x-4,5=3x+2,5
5x – 3x = 2,5 + 4,5
2x = 7
x = 3.5
г) 2x-(6x-5)=45
2x – 6x + 5 = 45
2x – 6x = 45 – 5
-4x = 40
x = -10
а) 1/3x = 12
x = 12 * 3
х= 36
б) 6x-10,2=0
6x = 10,2
x = 10,2 : 6
x = 1,7