6(x-3)=2x 0.5(3+0.25x)=4 3.4-2(x+1.2)=0.6 16x-271=3(5-2x)_数学解答

6(x-3)=2x 0.5(3+0.25x)=4 3.4-2(x+1.2)=0.6 16x-271=3(5-2x)

人气：156 ℃　时间：2020-06-02 04:13:27

解答

6(x-3)=2x3(x-3)=x3x-9=x2x=9x=4.50.5(3+0.25x)=43+0.25x=80.25x=5x=203.4-2(x+1.2)=0.6 2(x+1.2)=3.4-0.6 2(x+1.2)=2.8x+1.2=1.4x=0.216x-271=3(5-2x) 16x-271=15-6x 16x+6x=15+27122x=286x=13