问题 填空题

当a=______时,(24-4a)÷8的结果是0;当a=______时,(36-4a)÷8的结果是1.

答案

(1)(24-4a)÷8=0,

                24-4a=0,

             24-4a+4a=0+4a,

                   4a=24,

                4a÷4=24÷4,

                    a=6;

(2)(36-4a)÷8=1,

  (36-4a)÷8×8=1×8,

            36-4a=8,

         36-4a+4a=8+4a,

             8+4a=36,

           8+4a-8=36-8,

               4a=28,

            4a÷4=28÷4,

                a=7.

故答案为:6,7.

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