Overview: 6 questions will be solved this time.Among them
☆6 equations
[ 1/6 Equation]
Work: Find the solution of equation 0.7x+2.3 = 3.3+0.6x .
Question type: Equation
Solution:Original question:| | 7 10 | x | + | 23 10 | = | 33 10 | + | 3 5 | x |
Transposition :
| | 7 10 | x | − | 3 5 | x | = | 33 10 | − | 23 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.
[ 2/6 Equation]
Work: Find the solution of equation 0.4x+4.6 = 6+0.2x .
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.
[ 3/6 Equation]
Work: Find the solution of equation 0.8x+3.7 = 4.7+0.6x .
Question type: Equation
Solution:Original question:| | 4 5 | x | + | 37 10 | = | 47 10 | + | 3 5 | x |
Transposition :
| | 4 5 | x | − | 3 5 | x | = | 47 10 | − | 37 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 0.9x+0.6x-4 = 11 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 3 2 | x | − | 4 |
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 0.9x+4.8 = 6.6+0.7x .
Question type: Equation
Solution:Original question:| | 9 10 | x | + | 24 5 | = | 33 5 | + | 7 10 | x |
Transposition :
| | 9 10 | x | − | 7 10 | x | = | 33 5 | − | 24 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.
[ 6/6 Equation]
Work: Find the solution of equation 0.7x-1.1 = 2.5+0.4x .
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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