Overview: 6 questions will be solved this time.Among them
☆6 equations
[ 1/6 Equation]
Work: Find the solution of equation 0.6x+0.5x-3.7 = 1.8 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 11 10 | x | − | 37 10 |
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 0.3x+0.2x-5 = 0.5 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 1 2 | x | − | 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 0.8x+3.2 = 4.3+0.7x .
Question type: Equation
Solution:Original question:| | 4 5 | x | + | 16 5 | = | 43 10 | + | 7 10 | x |
Transposition :
| | 4 5 | x | − | 7 10 | x | = | 43 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.
[ 4/6 Equation]
Work: Find the solution of equation 0.9x-1.1 = 7.3+0.3x .
Question type: Equation
Solution:Original question:| | 9 10 | x | − | 11 10 | = | 73 10 | + | 3 10 | x |
Transposition :
| | 9 10 | x | − | 3 10 | x | = | 73 10 | + | 11 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.
[ 5/6 Equation]
Work: Find the solution of equation 0.3x+0.3x+4.5 = 11.7 .
Question type: Equation
Solution:Original question:| | 3 10 | x | + | 3 10 | x | + | 9 2 | = | 117 10 |
| Left side of the equation = | 3 5 | x | + | 9 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 0.2x+0.2x-2 = 3.6 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 2 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.
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