Answer:
3.1 - 0.3x
Step-by-step explanation:
2.2-0.5(0.6x-1.8)
2.2-0.5×0.6x-0.5×(-1.8)
2.2-0.5×0.6x+0.5×1.8
2.2-0.3x+0.5×1.8
2.2-0.3x+0.9
answer: 3.1-0.3x
