JAMES MUNROE AND COMPANY. 1842. A FUNDAMENTA Entered according to Act of Congress, in the year 1837, by James MUNROE AND COMPANY, in the Clerk's Office of the District Court of the District of Massachusetts. MUN I. Definitions a II . Addition.. FRACT ATON I. Reductio II. Addition II . Multipli IV. Proporti EQUAT TION 1. Puttir II. Redu III. Solut un IV. Equa CAMBRIDGE: STEREOTYPED AND PRINTED BY PRINTERS TO THE UNIVERSITY. II. D. SECTION I. Reduction of Fractions. . II. Addition and Subtraction of Fractions. SECTION I. Putting Problems into Equations. II. Reduction and Classification of Equations. III. Solution of Equations of the First Degree, with one 2. The tive sign, hat they Thus 3 and 5. 263 uantitie 20. 1. Algebra, according to the usual definition, is that branch of mathematics in which the quantities considered are represented by the letters of the alphabet, and the operations to be performed upon them are indicated by signs. In this sense it would embrace almost the whole science of mathematics, 214 elementary geometry alone being excepted. It is, consequently, subject in common use to some limitations, which will be more easily understood, when we are advanced in the science. 210 248 2. The sign + is called plus or more, or the positive sign, and placed between two quantities denotes that they are to be added together. Thus 3 + 5 is 3 plus or more 5, and denotes the sum of 3 and 5. Likewise a+b is the sum of a and b, or of the quantities which a and b represent. 1 IS. 271 |