VIDEO SOLUTIONS TO THE OFFICIAL GUIDE FOR GMAT QUANTITATIVE REVIEW, 2ND EDITION
ALGEBRA
Problem Solving: Begins at page 62
1, 2, 3, 5, 40, 41, 55, 57, 62, 72, 77, 91, 92, 99, 103, 104, 106, 107, 111, 113, 117, 122, 128, 133, 134, 147, 156.Data Sufficiency: Begins at page 153
1, 2, 15, 23, 24, 25, 28, 32, 37, 40, 46, 48, 54, 56, 57, 61, 62, 68, 69, 73, 74, 76, 80, 81, 83, 89, 94, 98, 100, 103, 105, 106, 109, 120, 121, 124.