解方程：①6x/3=2.7 ②4（3-x）/6=1.8 ③9（x+3）/2=18 ④2（5-x）+2-6=10x
问题描述：
解方程：①6x/3=2.7 ②4（3-x）/6=1.8 ③9（x+3）/2=18 ④2（5-x）+2-6=10x
第二题检验!
答
①6x/3=2.76x=8.1x = 1.35②4(3-x)/6=1.84(3-x)=10.812 - 4x =10.84x = 1.2x = 0.3检验：4（3-0.3）/6 =(12 - 1.2) /6=10.8 /6=1.8③9(x+3)/2=189(x+3) = 369x + 27 = 369x = 9x = 1④2(5-x)+2-6=10x 10 - 2x - 4 = ...