0.3x + 0.6 - 1.2x + 0.6 = 2.7x - 9.6
Combine like terms:
-0.9x + 1.2 = 2.7x - 9.6
Add 0.9x to both sides:
1.2 = 3.6x - 9.6
Add 9.6 to both sides:
10.8 = 3.6x
Divide by 3.6:
x = 3
0.3x + 0.6 - 1.2x + 0.6 = 2.7x - 9.6
Combine like terms:
-0.9x + 1.2 = 2.7x - 9.6
Add 0.9x to both sides:
1.2 = 3.6x - 9.6
Add 9.6 to both sides:
10.8 = 3.6x
Divide by 3.6:
x = 3