# The Model Algebra: Arranged for Elementary Schools

Eldredge & brother, 1903 - Arithmetic - 149 pages

### What people are saying -Write a review

We haven't found any reviews in the usual places.

### Contents

 Introduction 9 Problems 15 Algebraic Expression 25 Simple Equations Containing Two Unknowns 163 29 Positive and Negative Quantities 36 Equations 45 Algebraic Expression 53 Algebraic Expression 63
 Multiplication 81 Equations 95 Division 98 Equations 110 Common Factors 121 Applications of Common Factors and Common Multiples 127 Review Examples and Problems 137 FRACTIONS 143

### Popular passages

Page 91 - Since the square of a binomial is equal to the square of the first term, plus twice the product of the first term by the second, plus the square of the second...
Page 118 - The square of the sum of two quantities is equal to the square of the first, plus twice the product of the first by the second, plus the square of the second.
Page 91 - The square of the sum of two terms is the square of the first term plus twice the product of the two terms plus the square of the second term.
Page 103 - Then divide the first term of the remainder by the first term of the divisor, for the second term of the quotient ; multiply the divisor by this second term, and subtract the product from tht result of the first operation.
Page 27 - If we substitute this value for x in the equation we shall have 8+2x8=8+16 = 24. which proves that 8 is the true answer. 64. An equation involving only the first power of the unknown quantity, is called an equation of the first degree. Thus, 6x+3x— 5= 13, and ax-\-bx-\-c = d, are equations of the first degree.
Page 118 - ... square of the first quantity, minus the product of the two quantities, plus the square of the second quantity; also The difference of the cubes of two quantities is divisible by the difference of the quantities, and the quotient is the square of the first quantity, plus the product of the two quantities, plus the square of the second.
Page 129 - To reduce two or more fractions to a common denominator. A Common Denominator is a denominator common to two or more fractions 1. Reduce ? and 7, to a common denominator.
Page 77 - Both members of an equation may be multiplied, or divided, by the same number, without destroying the equality.
Page 101 - Rule. — 1. The first term of the product is the product of the first terms of the binomials.
Page 12 - The part of the equation which is on the left of the sign of equality is called the first member ; the part on the right of the sign of equality, the second member.