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

[ 1/1 Equation]
    Work: Find the solution of equation W×18%＋（1－W）×13% = 16% .
    Question type: Equation
    Solution:Original question:

W

×

18 100

+

(

1

−

W

)

×

13 100

=

16 100

    Remove the bracket on the left of the equation:

Left side of the equation =

18 100

W

+

1

×

13 100

−

W

×

13 100

=

18 100

W

+

13 100

−

W

×

13 100

=

1 20

W

+

13 100

    The equation is transformed into :

1 20

W

+

13 100

=

16 100

    Transposition :

1 20

W

=

16 100

−

13 100

    Combine the items on the right of the equation:

1 20

W

=

3 100

    The coefficient of the unknown number is reduced to 1 :

W

=

3 100

÷

1 20

=

3 100

×

20

=

3 5

×

1

    We obtained :

W

=

3 5

    This is the solution of the equation.

    Convert the result to decimal form :

W

=

0.6

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