4x+2(8-x)=264x-16-2x=264x-2x=26+162x=42x=21如果满意,请点击右下角采纳答案,O(∩_∩)O谢谢!
解:4x+2(8-x)=26 4x+16-2x=262x=26-162x=10x=5