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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. "
Secondary Algebra - Page 177
by George Egbert Fisher, Isaac Joachim Schwatt - 1900 - 442 pages
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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...
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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...
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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...
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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...
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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...
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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...
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Elementary Algebra

Walter William Rouse Ball - Mathematics - 1890 - 512 pages
...values satisfy both the given equations. 163. The object of the process above described is to multiply the equations by such numbers as will make the coefficients of one of the unknowns numerically equal in the two equations. Then, by addition or subtraction, we can eliminate...
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College Algebra

Webster Wells - Algebra - 1890 - 560 pages
...Whence, y = 2. Substituting this value in (1), 15 x + 16 = 1. RULE. If necessary, multiply the given equations by such numbers as will make the coefficients of one of the unknown quantities in the resulting equations of equal absolute value. Add or subtract the resulting equations...
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A School Algebra

George Albert Wentworth - Algebra - 1891 - 380 pages
...subtraction. 185. Hence, to eliminate by addition or subtraction, we have the following rule : Multiply the equations by such numbers as will make the coefficients of one of the unknown numbers equal in the resulting equations. Add the resulting equations, or subtract one from the other, according...
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A Higher Algebra

George Albert Wentworth - Algebra - 1891 - 550 pages
...ж =12. 160. Hence, to eliminate by addition or subtraction, we have the following rule : Multiply the equations by such numbers as will make the coefficients of one of the unknown numbers equal in the resulting equations. Add the resulting equations, or subtract one from the other, according...
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