I joined because I have a quick question on some basic geometry/higher algebra 1. (and since you all seem to be college students, maybe you could help me out?)
Here's my problem:
The measures of two supplementary angles are 4r - 7 and r - 2. Find the measure of the angles.
Now, from looking back at my notes, supplementary angles are angles that equal to 180 degrees. So... all that I've gathered from my info so far is that something having to do with 4r - 7 and r - 2 = 180. How do I set my problem up from there? (I can figure it out algebraicly when the equasion is set up)