Overview: 6 questions will be solved this time.Among them
☆6 equations
[ 1/6 Equation]
Work: Find the solution of equation 2x+2x-49 = 27 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 4 | x | − | 49 |
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 15(x+0.6) = 18 .
Question type: Equation
Solution:Original question: Remove the bracket on the left of the equation:
| Left side of the equation = | 15 | x | + | 15 | × | 3 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.
Convert the result to decimal form :
[ 3/6 Equation]
Work: Find the solution of equation 3x×3+33 = 166+2x .
Question type: Equation
Solution:Original question:| Left side of the equation = | 9 | x | + | 33 |
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.
[ 4/6 Equation]
Work: Find the solution of equation 6x+32 = 32+5x .
Question type: Equation
Solution:Original question:
Transposition :
i.e.
Combine the items on the left of the equation:
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 3x+43 = 55+2x .
Question type: Equation
Solution:Original question:
Transposition :
i.e.
Combine the items on the left of the equation:
Combine the items on the right of the equation:
This is the solution of the equation.
This is the solution of the equation.
[ 6/6 Equation]
Work: Find the solution of equation 4x×4+2x-36 = 216 .
Question type: Equation
Solution:Original question:| Left side of the equation = | 16 | x | + | 2 | x | − | 36 |
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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