SOLUTION: Two angles are supplementary. One is 10degrees more than four times the other. Find the measures of the angles.​ (Supplementary angles are angles whose sum is 180degrees​.)
Let x be the measure of the other angle.
Then the measure of the "one" angle is 4x+10.
You have this equation
x + (4x+10) = 180 degrees.
5x = 180-10
5x = 170
x = 170/5 = 34.
ANSWER. The angles are 34 degrees and 180-34 = 146 degrees.