N1
a) 0,3x+8=2
0,3x=2-8
0,3x=-6
x=-6/0,3
х=-20
б)4-x=1+4x
– x – 4x = 1 – 4
-5x = -3
x = 0.6
в)7-2(x+3)=9-6x
7 – 2x – 6 = 9 – 6x
– 2x + 6x = 9 + 6 – 7
4x = 8
x = 2
г)4(x-0,5)-2(x+0,3)=-2,6
4x – 2 – 2x – 0.6 = – 2.6
4x – 2x = – 2,6 + 0,6 + 2
x = 0
N2
a)0,4x-6=-12
0,4x=-12+6
0,4x=-6
x=-6/0,4
х=-15
б)x+6=5+4x
x – 4x = 5 – 6
-3x = -1
x = -1/-3
х=0,33333333333
в)13-3(x+1)=4-5x
13 – 3x – 3 = 4 – 5x
– 3x + 5x = 4 + 3 – 13
2x = -6
x = -3
г)0,2(3x-5)-0,3(x-1)=-0,7
0.6x – 1 – 0.3x + 0.3 = – 0.7
0,6x – 0,3x = – 0,7 – 0,3 + 1
N1
a) 0,3x+8=2
0,3x=2-8
0,3x=-6
x=-6/0,3
х=-20
б)4-x=1+4x
– x – 4x = 1 – 4
-5x = -3
x = 0.6
в)7-2(x+3)=9-6x
7 – 2x – 6 = 9 – 6x
– 2x + 6x = 9 + 6 – 7
4x = 8
x = 2
г)4(x-0,5)-2(x+0,3)=-2,6
4x – 2 – 2x – 0.6 = – 2.6
4x – 2x = – 2,6 + 0,6 + 2
x = 0
N2
a)0,4x-6=-12
0,4x=-12+6
0,4x=-6
x=-6/0,4
х=-15
б)x+6=5+4x
x – 4x = 5 – 6
-3x = -1
x = -1/-3
х=0,33333333333
в)13-3(x+1)=4-5x
13 – 3x – 3 = 4 – 5x
– 3x + 5x = 4 + 3 – 13
2x = -6
x = -3
г)0,2(3x-5)-0,3(x-1)=-0,7
0.6x – 1 – 0.3x + 0.3 = – 0.7
0,6x – 0,3x = – 0,7 – 0,3 + 1
x = 0