1) 6x = 28 - xAdding x to both sides:6x + x = 287x = 28Dividing by 7:x = 4
2) 9x - 26 = 30 - 5xAdding 5x to both sides:9x + 5x - 26 = 3014x - 26 = 30Adding 26 to both sides:14x = 56Dividing by 14:x = 4
3) 7 - 3x = 6x - 5.6Adding 3x to both sides:7 = 9x - 5.6Adding 5.6 to both sides:12.6 = 9xDividing by 9:x = 1.4
4) 0.9x - 7.4 = -0.4x + 4.3Adding 0.4x to both sides:0.9x + 0.4x - 7.4 = 4.31.3x - 7.4 = 4.3Adding 7.4 to both sides:1.3x = 11.7Dividing by 1.3:x = 9
5) 5.8 - 1.6x = 0.3x - 1.8Adding 1.6x to both sides:5.8 = 1.9x - 1.8Adding 1.8 to both sides:7.6 = 1.9xDividing by 1.9:x = 4
1) 6x = 28 - x
Adding x to both sides:
6x + x = 28
7x = 28
Dividing by 7:
x = 4
2) 9x - 26 = 30 - 5x
Adding 5x to both sides:
9x + 5x - 26 = 30
14x - 26 = 30
Adding 26 to both sides:
14x = 56
Dividing by 14:
x = 4
3) 7 - 3x = 6x - 5.6
Adding 3x to both sides:
7 = 9x - 5.6
Adding 5.6 to both sides:
12.6 = 9x
Dividing by 9:
x = 1.4
4) 0.9x - 7.4 = -0.4x + 4.3
Adding 0.4x to both sides:
0.9x + 0.4x - 7.4 = 4.3
1.3x - 7.4 = 4.3
Adding 7.4 to both sides:
1.3x = 11.7
Dividing by 1.3:
x = 9
5) 5.8 - 1.6x = 0.3x - 1.8
Adding 1.6x to both sides:
5.8 = 1.9x - 1.8
Adding 1.8 to both sides:
7.6 = 1.9x
Dividing by 1.9:
x = 4