Overview: 3 questions will be solved this time.Among them
           ☆3 equations

[ 1/3 Equation]
    Work: Find the solution of equation -X1+x2+x3 = 1 .
    Question type: Equation
    Solution:Original question:

-

X

×

1

+

X

×

2

+

X

×

3

=

1

Left side of the equation =

4

X

    The equation is transformed into :

4

X

=

1

    The coefficient of the unknown number is reduced to 1 :

X

=

1

÷

4

=

1

×

1 4

    We obtained :

X

=

1 4

    This is the solution of the equation.

    Convert the result to decimal form :

X

=

0.25

[ 2/3 Equation]
    Work: Find the solution of equation X1-X2+X3 = -1 .
    Question type: Equation
    Solution:Original question:

X

×

1

−

X

×

2

+

X

×

3

=

-

1

Left side of the equation =

2

X

    The equation is transformed into :

2

X

=

-

1

    The coefficient of the unknown number is reduced to 1 :

X

=

-

1

÷

2

=

-

1

×

1 2

    We obtained :

X

=

-

1 2

    This is the solution of the equation.

    Convert the result to decimal form :

X

=

- 0.5

[ 3/3 Equation]
    Work: Find the solution of equation X1+X2-X3 = 1 .
    Question type: Equation
    Solution:Original question:

X

×

1

+

X

×

2

−

X

×

3

=

1

Left side of the equation =

0

X

    The equation is transformed into :

0

X

=

1

    Transposition :

=

1

−

0

    The equation entered is incorrect, Please check it before entering.

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