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解方程.2.1×(X-0.26)=0.273X-X=.

题目详情
解方程.
2.1×(X-0.26)=0.273                      
X-X=


▼优质解答
答案和解析
(1)2.1×(X-0.26)=0.273,
    2.1×(X-0.26)÷2.1=0.273÷2.1,
                  X-0.26=0.13,
             X-0.26+0.26=0.13+0.26,
                       X=0.39;
(2)X-X=
       X=
  =÷
          X=