How do you solve 7.5=x+3/2

7.5 = x +  equals x = 6.

First, subtract  from both sides. / Your problem should look like: 7.5 -  = x.
Second, simplify 7.5 -  to 6. / Your problem should look like: 6 = x.
Third, switch sides. / Your problem should look like x = 6, which is your answer.

so the perpendicular line goes through the given pointyou would get a perpendicular line at some random location

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

The answer would be 10.