Overview: 6 questions will be solved this time.Among them
☆6 equations
[ 1/6 Equation]
Work: Find the solution of equation 0.4x+0.4x-2.6 = 6.2 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 4 5 | x | − | 13 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 0.6x+0.1x+3.7 = 14.2 .
Question type: Equation
Solution:Original question:| | 3 5 | x | + | 1 10 | x | + | 37 10 | = | 71 5 |
| Left side of the equation = | 7 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.
[ 3/6 Equation]
Work: Find the solution of equation 0.1x+0.9x+3.8 = 4.8 .
Question type: Equation
Solution:Original question:| | 1 10 | x | + | 9 10 | x | + | 19 5 | = | 24 5 |
| Left side of the equation = | 1 | x | + | 19 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.
[ 4/6 Equation]
Work: Find the solution of equation 0.4x+0.1x-3.5 = 2 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 1 2 | x | − | 7 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.
[ 5/6 Equation]
Work: Find the solution of equation 0.6x+3.3 = 9.8+0.1x .
Question type: Equation
Solution:Original question:| | 3 5 | x | + | 33 10 | = | 49 5 | + | 1 10 | x |
Transposition :
| | 3 5 | x | − | 1 10 | x | = | 49 5 | − | 33 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.
[ 6/6 Equation]
Work: Find the solution of equation 0.6x+1.5 = 2.9+0.5x .
Question type: Equation
Solution:Original question:
Transposition :
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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