4.5*6+4.5x=45解:27+4.5x=45 4.5x=45-27 4.5x=18 x=4希望能够采纳,O(∩_∩)O谢谢!!!
4.5*(6+x)=4.5*10 6+x=10 x=4
4.5*6+4.5x=45解方程 27 + 4.5x = 454.5x = 18x = 4