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How to approach and solve word problems ? Give an example.
Approach to word problems :
Steps involved in solving a linear equation word problem:
- Write what is given and what is required.
- Denote the unknowns by the variables as x, y, etc.
- Change the problem into a problem of mathematical statements.
- Form the linear equation in one variable using the conditions given in the problems.
- Solve the equation for the unknown.
Example,
Form a linear equation from the given statement: ‘When 5 is added to twice a number, it gives 11.’
When 5 is added to twice a number, it gives 11.
We have to form a linear equation.
Let the number be x.
This implies,
$2(x)+5 = 11$
Therefore,
$2x + 5 = 11$ is the required linear equation.
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