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Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation (x-2)+(x+2)+x/2+2x = 45 .
Question type: Equation
Solution:Original question:
The equation is transformed into :
Remove the bracket on the left of the equation:
The equation is transformed into :
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation (x-2)+(x+2)+x/2+2x = 45 .
Question type: Equation
Solution:Original question:
| ( | x | − | 2 | ) | + | ( | x | + | 2 | ) | + | x | ÷ | 2 | + | 2 | x | = | 45 |
| Left side of the equation = | ( | x | − | 2 | ) | + | ( | x | + | 2 | ) | + | 5 2 | x |
| ( | x | − | 2 | ) | + | ( | x | + | 2 | ) | + | 5 2 | x | = | 45 |
| Left side of the equation = | x | − | 2 | + | ( | x | + | 2 | ) | + | 5 2 | x |
| = | 7 2 | x | − | 2 | + | ( | x | + | 2 | ) |
| = | 7 2 | x | − | 2 | + | x | + | 2 |
| = | 9 2 | x | − | 0 |
9 2 | x | − | 0 | = | 45 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 45 | ÷ | 9 2 |
| = | 45 | × | 2 9 |
| = | 5 | × | 2 |
We obtained :
| x | = | 10 |