5x-18.5=0 3.6x7-6x=9.6 3.4x-48=26.8 42x+25x=134 0.8x÷ 9=2.7 4x-4x_数学解答

5x-18.5=0 3.6x7-6x=9.6 3.4x-48=26.8 42x+25x=134 0.8x÷ 9=2.7 4x-4x2.2=11.2

人气：217 ℃　时间：2019-11-14 05:10:50

解答

5x-18.5=0 3.5x=18.8x=3.766x7-6x=9.6 42-6x=9.66x=32.4x=5.43.4x-48=26.8 3.4x=74.8x=2242x+25x=134 67x=134x=20.8x÷ 9=2.7 0.8x=24.3x=30.3754x-4x2.2=11.2 4x-8.8=11.24x=20x=5