Help me please find the set all x such that the difference between 3 times x and 2 is less than 7​

i think it is 18

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3