解方程：78×3x=3.6x÷1.98=0.4（4.5-x）×0.375=0.7512x+23x=14x-0.52x=3.2×0._数学解答

解方程：

78×3x=3.6

x÷1.98=0.4

（4.5-x）×0.375=0.75

x=14

x-0.52x=3.2×0.15

x+25%=10．

人气：411 ℃　时间：2019-08-21 15:04:34

解答

①78×3x=3.6 234x=3.6 234x÷234=3.6÷234 x=2145 ②x÷1.98=0.4x×1.98÷1.98=0.4×1.98&n...