Overview: 5 questions will be solved this time.Among them
           ☆3 equations
           ☆2 arithmetic calculations

[1/5 Formula]
    Work: Calculate the value of equation 14+12-(12+10) .
    Question type: Mathematical calculation
    Solution:
          14+12-(12+10)
        =14+12-22
        =26-22
        =4
    Answer:14+12-(12+10)=4
[ 2/5 Equation]
    Work: Find the solution of equation [16+12i]-[14+14i]+[-1+4i] = 0 .
    Question type: Equation
    Solution:Original question:

(

16

+

12

i

)

−

(

14

+

14

i

)

+

(

-

1

+

4

i

)

=

0

    Remove the bracket on the left of the equation:

Left side of the equation =

16

+

12

i

−

(

14

+

14

i

)

+

(

-

1

+

4

i

)

=

16

+

12

i

−

14

−

14

i

+

(

-

1

+

4

i

)

=

2

−

2

i

+

(

-

1

+

4

i

)

=

2

−

2

i

−

1

+

4

i

=

1

+

2

i

    The equation is transformed into :

1

+

2

i

=

0

    Transposition :

2

i

=

0

−

1

    Combine the items on the right of the equation:

2

i

=

-

1

    The coefficient of the unknown number is reduced to 1 :

i

=

-

1

÷

2

=

-

1

×

1 2

    We obtained :

i

=

-

1 2

    This is the solution of the equation.

    Convert the result to decimal form :

i

=

- 0.5

[ 3/5 Equation]
    Work: Find the solution of equation [1-i]+[2+2i]-[3-i] = 0 .
    Question type: Equation
    Solution:Original question:

(

1

−

i

)

+

(

2

+

2

i

)

−

(

3

−

i

)

=

0

    Remove the bracket on the left of the equation:

Left side of the equation =

1

−

i

+

(

2

+

2

i

)

−

(

3

−

i

)

=

1

−

i

+

2

+

2

i

−

(

3

−

i

)

=

3

+

1

i

−

(

3

−

i

)

=

3

+

1

i

−

3

+

i

=

0

+

2

i

    The equation is transformed into :

0

+

2

i

=

0

    The coefficient of the unknown number is reduced to 1 :

i

=

0

÷

2

=

0

×

1 2

    We obtained :

i

=

0

    This is the solution of the equation.

[4/5 Formula]
    Work: Calculate the value of equation 16+14+40/4 .
    Question type: Mathematical calculation
    Solution:
          16+14+40/4
        =16+14+10
        =30+10
        =40
    Answer:16+14+40/4=40
[ 5/5 Equation]
    Work: Find the solution of equation [20-i]-14+[-5+3i] = 0 .
    Question type: Equation
    Solution:Original question:

(

20

−

i

)

−

14

+

(

-

5

+

3

i

)

=

0

    Remove the bracket on the left of the equation:

Left side of the equation =

20

−

i

−

14

+

(

-

5

+

3

i

)

=

6

−

i

+

(

-

5

+

3

i

)

=

6

−

i

−

5

+

3

i

=

1

+

2

i

    The equation is transformed into :

1

+

2

i

=

0

    Transposition :

2

i

=

0

−

1

    Combine the items on the right of the equation:

2

i

=

-

1

    The coefficient of the unknown number is reduced to 1 :

i

=

-

1

÷

2

=

-

1

×

1 2

    We obtained :

i

=

-

1 2

    This is the solution of the equation.

    Convert the result to decimal form :

i

=

- 0.5

Your problem has not been solved here? Please go to the Hot Problems section！