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

[ 1/1 Equation]
    Work: Find the solution of equation 20% = 40%-（1+g）/g×7% .
    Question type: Equation
    Solution:Original question:

20 100

=

40 100

−

(

1

+

g

)

÷

g

×

7 100

Multiply both sides of the equation by:

g

20 100

g

=

40 100

g

−

(

1

+

g

)

×

7 100

    Remove a bracket on the right of the equation:：

20 100

g

=

40 100

g

−

1

×

7 100

−

g

×

7 100

    The equation is reduced to :

20 100

g

=

40 100

g

−

7 100

−

g

×

7 100

    The equation is reduced to :

20 100

g

=

33 100

g

−

7 100

    Transposition :

20 100

g

−

33 100

g

=

-

7 100

    Combine the items on the left of the equation:

-

13 100

g

=

-

7 100

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

7 100

=

13 100

g

    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 :

13 100

g

=

7 100

    The coefficient of the unknown number is reduced to 1 :

g

=

7 100

÷

13 100

=

7 100

×

100 13

=

7

×

1 13

    We obtained :

g

=

7 13

    This is the solution of the equation.

    Convert the result to decimal form :

g

=

0.538462

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