Overview: 6 questions will be solved this time.Among them
☆6 equations
[ 1/6 Equation]
Work: Find the solution of equation 0.3x+0.5x+1.2 = 10 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 4 5 | x | + | 6 5 |
The equation is transformed into :
Transposition :
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
[ 2/6 Equation]
Work: Find the solution of equation 0.4x+0.5x+4.4 = 14.3 .
Question type: Equation
Solution:Original question:| | 2 5 | x | + | 1 2 | x | + | 22 5 | = | 143 10 |
| Left side of the equation = | 9 10 | x | + | 22 5 |
The equation is transformed into :
Transposition :
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
[ 3/6 Equation]
Work: Find the solution of equation 0.9x-1.9 = 5.1+0.2x .
Question type: Equation
Solution:Original question:| | 9 10 | x | − | 19 10 | = | 51 10 | + | 1 5 | x |
Transposition :
| | 9 10 | x | − | 1 5 | x | = | 51 10 | + | 19 10 |
Combine the items on the left of the equation:
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
[ 4/6 Equation]
Work: Find the solution of equation 0.7x+0.3x-1.6 = 6.4 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 1 | x | − | 8 5 |
The equation is transformed into :
Transposition :
i.e.
Combine the items on the right of the equation:
This is the solution of the equation.
This is the solution of the equation.
[ 5/6 Equation]
Work: Find the solution of equation 0.9x+0.3x+2 = 4.4 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 6 5 | x | + | 2 |
The equation is transformed into :
Transposition :
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
[ 6/6 Equation]
Work: Find the solution of equation 0.3x+3.2 = 3.7+0.2x .
Question type: Equation
Solution:Original question:| | 3 10 | x | + | 16 5 | = | 37 10 | + | 1 5 | x |
Transposition :
| | 3 10 | x | − | 1 5 | x | = | 37 10 | − | 16 5 |
Combine the items on the left of the equation:
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
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