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Books Books 31 - 40 of 50 on RULE. Find an expression for the value of one of the unknown quantities in one of....
" RULE. Find an expression for the value of one of the unknown quantities in one of the equations, and substitute this value for the same unknown quantity in the other equation. "
A treatise on the elements of algebra, by G. Ainsworth and J. Yeats - Page 78
by G. Ainsworth, J. Yeats - 1854
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Mathematics for Practical Men: Being a Common-place Book of Principles ...

Olinthus Gregory - 1863
...equations, will lead to the determination of the first unknown quantity. 2. Find the value of either of the unknown quantities in one of the equations, and substitute this value for it in the other equation : so will the other unknown quantity become known, and then the first, as...
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Algebra: Adapted to the Course of Instruction Usually Pursued in the ...

Paul Allen Towne - Algebra - 1865 - 298 pages
...Find, in either of the equations, the value of one of the unknown quantities in terms of the other, and substitute this value for the same unknown quantity in the other equation. (3.) From the equation thus formed, find the value of the letter involved. (4.) Substitute...
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Primary Elements of Algebra: For Common Schools and Academies

Joseph Ray - Algebra - 1866 - 240 pages
...Comparison. 8d. Elimination by Addition and Subtraction. 158. Elimination by Substitution consists in finding the value of one of the unknown quantities in one of the equations, in terms of the other unknown quantity and known terms, and substituting this, instead of the quantity,...
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Ray's Algebra, First Book: Primary Elements of Algebra, for Common ..., Book 1

Joseph Ray - Algebra - 1866 - 240 pages
...Comparison. 3d. Elimination by Addition and Subtraction. 158. Elimination by Substitution consists in finding the value of one of the unknown quantities in one of the equations, in terms of the other unknown quantity and known terms, and substituting this, instead of the quantity,...
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Ray's Algebra, Part Second: An Analytical Treatise, Designed for ..., Part 2

Joseph Ray - Algebra - 1852 - 396 pages
...subtraction. ELIMINATION BY SUBSTITUTION. ART. 156. Elimination by substitution consists in finding the value of one of the unknown quantities in one of the equations, in terms of the other unknown quantity and known terms, and •ubstituting this, instead of the quantity,...
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New Elementary Algebra: Containing the Rudiments of Science for Schools and ...

Horatio Nelson Robinson - Algebra - 1866 - 312 pages
...gives the value of x in known terms. Reducing, we obtain x = 3. Hence, the following RULE. I. Find the value of one of the unknown quantities in one of the given equations. II. Substitute this value for the same unknown quantity in the other equation. EXAMPLES...
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Eaton's Elementary Algebra: Designed for the Use of High Schools and Academies

William Frothingham Bradbury - Algebra - 1868 - 252 pages
...z=2. Substituting this value of x in (3), we obtain (7), or y = 3. Hence, RULE. Find an expression for the value of one of the unknown quantities in one...this value for the same unknown quantity in the other equation. NOTE. — After eliminating, the resulting equation is reduced by the rule in Art. 102. The...
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Elements of Algebra: For Colleges, Schools, and Private Students, Book 2

Joseph Ray - Algebra - 1866 - 406 pages
...Comparison. 3d. Elimination by Addition and Subtraction. 156. Elimination by Substitution consists in finding the value of one of the unknown quantities in one of the equations, and substituting this value in the other equation 2d Bk. fl* To explain this method, let it bo required...
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An Elementary Algebra

Daniel Barnard Hagar - Algebra - 1873 - 263 pages
...find x and y. Ans. x — 9; y =4219. Rule for Elimination by Substitution. — Find an expression for the value of one of the unknown quantities in one of the equations. Substitute this value for the same unknown quantity in the other equation, and solve the equation....
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New Elementary Algebra

Horatio Nelson Robinson - Algebra - 1874 - 312 pages
...gives the value of x in known terms. Reducing, wo obtain x = 3. Ilence, the following RULE. I. Find the value of one of the unknown quantities in one of the given equations. II. Substitute this value for the same unknown quantity in the other equation. EXAMPLES...
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