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解方程.x-162=1896x=2.94x÷0.9=1.84-0.040.58+x=0.950.4x=7x÷1.2=1.2x+0.42=4.4+3.26x-4.6=632-2x=18.

题目详情
解方程.
x-162=1896x=2.94x÷0.9=1.84-0.04
0.58+x=0.950.4x=7x÷1.2=1.2
x+0.42=4.4+3.26x-4.6=632-2x=18.
▼优质解答
答案和解析
(1)x-162=189
     x-162+162=189+162
             x=351

(2)6x=2.94
  6x÷6=2.94÷6
      x=0.49


(3)x÷0.9=1.84-0.04
x÷0.9×0.9=1.8×0.9
          x=1.62


(4)0.58+x=0.95
0.58+x-0.58=0.95-0.58
          x=0.37


(5)0.4x=7
0.4x÷0.4=7÷0.4
        x=17.5


(6)x÷1.2=1.2
x÷1.2×1.2=1.2×1.2
          x=1.44

(7)x+0.42=4.4+3.26
x+0.42-0.42=7.66-0.42
          x=7.24

(8)x-4.6=6
 x-4.6+4.6=6+4.6
         x=10.6

(9)32-2x=18
  32-2x+2x=18+2x
  2x+18-18=32-18
        2x=14
     2x÷2=14÷2
         x=7