(1)x+25%=8.75

2025-02-23 23:52:20
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回答1:

(1)x+25%=8.75
                 x=8.75-0.25
                 x=8.5
(2)12-120%x=6
                 1.2x=6
                     x=5
(3) x-5%x=5.5
              0.55x=5.5
                    x=10
(4)15%x+30%x-5%x=
                           40%x=1.2
                                 x=3
(5)x-32%x=3.06
            0.68x=3.06
                  x= 4.5
(6)4%x+6%x=29.4
                  0.1x=29.4
                       x=294