问题 解答题
解方程:
(1)5(3x-4)-2(x-1)=5(2x-1)
(2)
6x-1
8
=
8
3
答案

(1)5(3x-4)-2(x-1)=5(2x-1)

                15x-20-2x+2=10x-5,

                     13x-18=10x-5,

                 13x-18-10x=10x-5-10x,

                      3x-18=-5,

                   3x-18+18=-5+18,

                         3x=13,

                      3x÷3=13÷3,

                          x=

13
3

(2)

6x-1
8
=
8
3

  3(6x-1)=64,

      18x-3=64,

    18x-3+3=64+3,

        18x=67,

    18x÷18=67÷18,

          x=

67
18

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