Answer:
The required equation is .
Step-by-step explanation:
Consider the provided information:
Alan wants to reduce his weekly expenditure by $5.
His car can travel an average of 25 miles per gallon which can be written as:
The cost of gasoline is $4 per gallon which can be written as:
Alan wants to reduce his weekly expenditure by $5.
Where 'M' is how many fewer average miles.
Hence, the required equation is .