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Step-by-step explanation:
1) First, I have to convert the given situations into linear equations in two variables.
2)second ,I will choose the best method for solving the given equations to get solutions.
3)Third , I will find the value of one variable and substitute the value in another equation to get the value of second variable by simplification.
4)Finally, I will identify the solution of the linear equation in two variables by checking .
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