Linear function

Using one of the following forms x+p=q or px=q write an to represent these problems using x as the unknown variable

Larry ran 7 more miles than Barry in a month, if Larry ran 20 miles how many did Barry run?


please help its due tomorrow

Correct result:

B =  13 mi

Solution:

$$\begin{gathered} L=7+B \\ L=20\text{ mi } \\ B=L-7=20-7=13\text{ mi} \end{gathered}$$

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