EQUALITY 1. If a = b, then a + c = b + c. 2. If a = b, then a — c = b — c. 3. If a = b, then ac = be. A College Algebra - Page 13 by Henry Burchard Fine - 1904 - 595 pages Full view - About this book
...remaining laws may be established similarly. 230 Rules of equality. Let a, b, c denote any complex numbers. 1. If a = b, then a + c = b + c. 2. If a + c = b + c, then a = b. 3. If a = b, then ac = be. 4. If ac = be, then a = b, unless с = 0. 1. For...
EQUALITY 1. If a = b, then a + c = b + c. 2. If a = b, then a — c = b — c. 3. If a = b, then ac = be. 