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If necessary, multiply the given equations by such numbers as will make the coefficients of one of the unknown numbers in the resulting equations of equal absolute value.
New School Algebra - Page 176
by George Albert Wentworth - 1898

## The boys' algebra

James Cahill (of Dublin.) - Algebra - 1875 - 230 pages
...Method. — Given 3z+4'/=43 \ to find the values 5x — 7y= — 24 J of x and y. Rule Multiply the two equations by such numbers as will make the coefficients of one of the unknown quantities the same in both the resulting equations, and from these last equations obtain, by addition...

## A school algebra to quadratic equations

Charles Mansford - 1875 - 110 pages
...These illustrations give the following general rule. Multiply each of the equations, where necessary, by such numbers as will make the coefficients of one of the unknown quantities tlie sume in each equation. Then if the signs of this unknown quantity are alike, subtract...

## Elements of Algebra

George Albert Wentworth - Algebra - 1881 - 406 pages
...subtraction, Multiply the equations by such numbers as will make the coefficients of this unknown quantity equal in the resulting equations. Add the resulting...subtract one from the other, according as these equal quantities have unlike or like signs. NOTE. It is generally best to select that unknown quantity to...

## A Complete Course in Algebra for Academies and High Schools

Webster Wells - Algebra - 1885 - 372 pages
...— 1, у = 2. This solution is an example of elimination by subtraction. EULE. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

## A Complete Course in Algebra for Academies and High Schools

Webster Wells - Algebra - 1885 - 370 pages
...— l , у = 2. This solution is an example of elimination by subtraction. RULE. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

## A Complete Course in Algebra

Webster Wells - 1885 - 368 pages
...— 1 , y = 2. This solution is an example of elimination by subtraction. BULE. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...

## Shorter Course in Algebra

George Albert Wentworth - Algebra - 1886 - 284 pages
...subtraction, Multiply the equations by such numbers as will make the coefficients of this unknown quantity equal in the resulting equations. Add the resulting...subtract one from the other, according as these equal quantities have unlike or like signs. NOTE. It is generally best to select that unknown quantity to...

## A Short Course in Higher Algebra: For Academies, High Schools, and Colleges

Webster Wells - Algebra - 1889 - 584 pages
...= — 1, y = 2. This solution is an example of elimination by subtraction. BULB. Multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities equal. Add or subtract the resulting equations according as the equal coefficients have...