Chapter 7 - Section 7.5 - Solving Equations Containing Rational Expressions - Exercise Set - Page 525: 63

100 degrees and 80 degrees

$20x/3 + 32x/6 = 180$ $20x*6/3 + 32x*6/6 = 180*6$ $120x/3 + 32x = 1080$ $40x + 32x = 1080$ $72x=1080$ $72x/72 = 1080/72$ $x=15$ $20x/3 + 32x/6 = 180$ $20*15/3 + 32*15/6 = 180$ $300/3 + 16*15/3 = 180$ $100 + 16*5 = 180$ $100 + 80 = 180$