Question

so i have to get this done before grades are turned in.

Answer 1

One situation that can solve this linear equation is as follows:

A plumber earned $15 for fixing a broken part in a bathroom. He said that he needed $3 to check what the problem was before fixing the broken part and that he earned $5 per hour.

Therefore, we can state: how many hours did the plumber work to fix the broken part in the bathroom?

We can solve the equation by finding the value of p as follows:

$5p+3=15$

We can subtract 3 from both sides of the equation, and then divide by 5 to find the value of p as follows:

$5p+3-3=15-3\Rightarrow5p=12\Rightarrow\frac{5p}{5}=\frac{12}{5}\Rightarrow p=2.4$

Then, the plumber worked 2.4 hours to fix the broken part in the bathroom.

In summary, we translated a problem to a linear equation, and then solve for the unknown variable, p, to solve for the number of hours the plumber worked.