1) x+3=-9x
x + 9x = – 3
10x = -3
x = -0.3
2) -3x-9=2x
– 3x – 2x = 9
-5x = 9
x = -1.8
3)6x+1=-4x
6x + 4x = – 1
10x = -1
x = -0.1
4)-2x-4=3x
– 2x – 3x = 4
-5x = 4
x = -0.8
5)7+8x=-2x-5
8x + 2x = – 5 – 7
10x = -12
x = -1.2
6)-5+9x=10x+4
9x – 10x = 4 + 5
-x = 9
x = -9
7)1-10x=-5x+10
– 10x + 5x = 10 – 1
8)-4-6x=4x-3
– 6x – 4x = – 3 + 4
-10x = 1
9)4(x-8)=-5
4x – 32 = – 5
4x = – 5 + 32
4x = 27
x = 6.75
10)10(x-9)=7
10x – 90 = 7
10x = 7 + 90
10x = 97
x = 9.7
11)5(x+9)=-8
5x + 45 = – 8
5x = – 8 – 45
5x = -53
x = -10.6
12)4(x+1)=9
4x + 4 = 9
4x = 9 – 4
4x = 5
x = 1.25
1) x+3=-9x
x + 9x = – 3
10x = -3
x = -0.3
2) -3x-9=2x
– 3x – 2x = 9
-5x = 9
x = -1.8
3)6x+1=-4x
6x + 4x = – 1
10x = -1
x = -0.1
4)-2x-4=3x
– 2x – 3x = 4
-5x = 4
x = -0.8
5)7+8x=-2x-5
8x + 2x = – 5 – 7
10x = -12
x = -1.2
6)-5+9x=10x+4
9x – 10x = 4 + 5
-x = 9
x = -9
7)1-10x=-5x+10
– 10x + 5x = 10 – 1
-5x = 9
x = -1.8
8)-4-6x=4x-3
– 6x – 4x = – 3 + 4
-10x = 1
x = -0.1
9)4(x-8)=-5
4x – 32 = – 5
4x = – 5 + 32
4x = 27
x = 6.75
10)10(x-9)=7
10x – 90 = 7
10x = 7 + 90
10x = 97
x = 9.7
11)5(x+9)=-8
5x + 45 = – 8
5x = – 8 – 45
5x = -53
x = -10.6
12)4(x+1)=9
4x + 4 = 9
4x = 9 – 4
4x = 5
x = 1.25