Overview: 6 questions will be solved this time.Among them
☆6 equations
[ 1/6 Equation]
Work: Find the solution of equation 0.7x-10.05 = 3.6 .
Question type: Equation
Solution:Original question:
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.
Convert the result to decimal form :
[ 2/6 Equation]
Work: Find the solution of equation 4x×4-2x×4-26 = 46 .
Question type: Equation
Solution:Original question:| | 4 | x | × | 4 | − | 2 | x | × | 4 | − | 26 | = | 46 |
| Left side of the equation = | 16 | x | − | 8 | x | − | 26 |
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 3x×5+3x-45 = 27 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 15 | x | + | 3 | x | − | 45 |
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.
[ 4/6 Equation]
Work: Find the solution of equation 4x+46 = 118-2x×2 .
Question type: Equation
Solution:Original question:| Right side of the equation = | 118 | − | 4 | x |
The equation is transformed into :
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.
[ 5/6 Equation]
Work: Find the solution of equation 2x×4+x-22 = 95 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 8 | x | + | x | − | 22 |
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 (x-3)÷2 = 8.5 .
Question type: Equation
Solution:Original question: Remove the bracket on the left of the equation:
| Left side of the equation = | x | × | 1 2 | − | 3 | × | 1 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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