Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation （0.4x+14）➗（0.6x+6） = 1.2 .
    Question type: Equation
    Solution:Original question:

(

2 5

x

+

14

)

÷

(

3 5

x

+

6

)

=

6 5

Multiply both sides of the equation by:

(

3 5

x

+

6

)

(

2 5

x

+

14

)

=

6 5

(

3 5

x

+

6

)

    Remove a bracket on the left of the equation:：

2 5

x

+

14

=

6 5

(

3 5

x

+

6

)

    Remove a bracket on the right of the equation:：

2 5

x

+

14

=

6 5

×

3 5

x

+

6 5

×

6

    The equation is reduced to :

2 5

x

+

14

=

18 25

x

+

36 5

    Transposition :

2 5

x

−

18 25

x

=

36 5

−

14

    Combine the items on the left of the equation:

-

8 25

x

=

36 5

−

14

    Combine the items on the right of the equation:

-

8 25

x

=

-

34 5

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :

34 5

=

8 25

x

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :

8 25

x

=

34 5

    The coefficient of the unknown number is reduced to 1 :

x

=

34 5

÷

8 25

=

34 5

×

25 8

=

17

×

5 4

    We obtained :

x

=

85 4

    This is the solution of the equation.

    Convert the result to decimal form :

x

=

21.25

Your problem has not been solved here? Please take a look at the  hot problems ！