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2(x-16)=8解方程 解方程. 2X+3×0.9=24.7

火烧 2021-06-05 04:06:15 1049
解方程. 2X+3×0.9=24.7 解方程. 2X+3×0.9=24.7 (1)2X+3×0.9=24.7,2x+2.7=24.7,2x+2.7-2.7=24.7-2.7,2x=22,2x÷2=22

解方程. 2X+3×0.9=24.7  

解方程. 2X+3×0.9=24.7

(1)2X+3×0.9=24.7,
2x+2.7=24.7,
2x+2.7-2.7=24.7-2.7,
2x=22,
2x÷2=22÷2,
x=11;

(2)

3 8

x-

3 16

x=

3 8


3 8

-

3 16

)x=

3 8

3 16

x=

3 8

3 16

3 16

=

3 8

÷

3 16


x=2;

解方程。 2x+3×0.9=24.7 解:

2x+3×0.9=24.7
解2x+2.7=24.7
2x=24.7-2.7
2x=22
x=11

2x+3乘0.9=24.7是解方程

2X+3乘0.9=24.7 解:- - 2X+2.7=24.7 2X=24.7-2.7 2X=22 X=11

解方程: 5 7 = x 35 2x+3×0.9=24.7


(1)

5 7 =

x 35


      7x=5×35,
   7x÷7=5×35÷7,
       x=25;

(2)2x+3×0.9=24.7,
        2x+2.7=24.7,
    2x+2.7-2.7=24.7-2.7,
            2x=22,
         2x÷2=22÷2,
             x=11;

(3)24x-17.6x=23.04,
          6.4x=23.04,
     6.4x÷6.4=23.04÷6.4,
             x=3.6.

解方程: 57=x35 2x+3×0.9=24.7 2

(1)

5 7

x 35


      7x=5×35,
   7x÷7=5×35÷7,
       x=25;

(2)2x+3×0.9=24.7,
        2x+2.7=24.7,
    2x+2.7-2.7=24.7-2.7,
            2x=22,
         2x÷2=22÷2,
             x=11;

(3)24x-17.6x=23.04,
          6.4x=23.04,
     6.4x÷6.4=23.04÷6.4,
             x=3.6.

解方程或比例.①2x+3×0.9=24.7② 3

(1)2x+3×0.9=24.7
2x+2.7=24.7
2x+2.7-2.7=24.7-2.7
2X=22
2X÷2=22÷2
X=11

(2)

3 4

:x=

2 5

:24

2 5

X=

3 4

×24

2 5

2 5

=18÷

2 5

X=45

解方程或比例.①2x+3×0.9=24.7 &n.

(1)2x+3×0.9=24.7
           2x+2.7=24.7
       2x+2.7-2.7=24.7-2.7
               2X=22
            2X÷2=22÷2        
                X=11
            
(2)

3 4

:x=

2 5

:24

2(x-16)=8解方程 解方程. 2X+3×0.9=24.7
2 5

X=

3 4

×24

2 5

2 5

=18÷

2 5

X=45

解方程.2X+3×0.9=24.70

(1)2X+3×0.9=24.7,
2x+2.7=24.7,
2x+2.7-2.7=24.7-2.7,
2x=22,
2x÷2=22÷2,
x=11;

(2)0.3:X=17:51,
17x=0.3×51,
17x=15.3,
17x÷17=15.3÷17,
x=0.9.

解方程.2x+3×0.9=24.94

(1)2x+3×0.9=24.9,
            2x+2.7=24.9,
        2x+2.7-2.7=24.9-2.7,
             2x÷2=22.2÷2,
                 x=11.1;

(2)4x-1.6x=36,
        2.4x=36,
   2.4x÷2.4=36÷2.4,
           x=15;

(3)2x÷5=15,
  2x÷5×5=15×5,
     2x÷2=75÷2,
         x=37.5.

  
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