whew. Glad to know it.
Now, if the problem is to find what the angle is, then you should say so.
In that case, you need to recall that supplementary angles add to 180 degrees.
A = 10(180-A) - 7
A = 1800 - 10A - 7
11A = 187
A = 17
the measure of an angle is 7 less than 10 times its supplement
2 answers
Oops. 11A = 1793
A = 163
Oddly enough, the supplement of my first result!
A = 163
Oddly enough, the supplement of my first result!