 | Nathaniel Hammond - Algebra - 1742 - 362 pages
...Queftion contains four Equations, and there JD are four unknown Quantities in each Equation : Then find the Value of one of the unknown Quantities in one of the given Equations, and for that unknown Quantity in the other three Equations write this Value of it,... | |
 | Nathaniel Hammond - Algebra - 1772 - 362 pages
...the Queftion1 contains four Equations, and y V there are four unknown Quantities in each Equation ; find the Value of one of the unknown Quantities in one of the given Equations, and for that unknown Quantity in the other three Equations write this Value of it,... | |
 | Charles Hutton - Mathematics - 1812 - 620 pages
...equation, to be reduced by the rules for a single equation. 2. Or, as in the 3d rule of the same problem, find the value of one of the unknown quantities in one of the equations only ; then substitute this value instead of it in the other equations ; which gives a new set of equations... | |
 | Charles Hutton - Mathematics - 1822 - 616 pages
...equation, to be reduced by the rules for a single equation. 2. Or, as in the 2d rule of the same problem, find the value of one of the unknown quantities in one of the equation* only; then substitute this value instead of it in the other equations ; which gives a new... | |
 | James Mitchell - Mathematics - 1823 - 666 pages
...one unknown quantity, the value of which mast be found by the proper rnles, as above referred to. 2. Find the value of one of the unknown quantities in one of the equations m terms of the other quantities ; then substitute this value for that quantity in all the IH her e(l... | |
 | Charles Hutton - Mathematics - 1831 - 632 pages
...reduced by the rules for a single equation. 2. Or, as in the 2d rule of the same problem, find i.he value of one of the unknown quantities in one of the equations only ; then substitute this value instead of it in the other equations ; which gives a new set of equations... | |
 | Bourdon (M., Louis Pierre Marie) - Algebra - 1831 - 446 pages
...principal methods of eliminations. The first, called the method by substitution, consists in finding"the value of one of the unknown quantities in one of the equations, as if the other unknown quantities were already determined, and in substituting this value in the other... | |
 | Charles Davies - Algebra - 1835 - 378 pages
...And . x= — - — =3. • ' • This method, called the method by substitution, consists in finding the value of one of the unknown quantities in one of the equations, as if the other unknown quantities were already determined, and in substituting this value in the other... | |
 | Algebra - 1838 - 372 pages
...43—28 And . a;= — - — =3. o This method, called the method by substitution, consists m fmding the value of one of the unknown quantities in one of the equations, as if the other unknown quantities were already determined, and in substituting this value in the other... | |
 | Andrew Bell (writer on mathematics.) - 1839 - 500 pages
...find x and jr. to find x and y. ANSWERS. 4... 5... 6... -= 12,y=8 IL By Substitution. (261.) ! Find a value of one of the unknown quantities in one of the equations ; substitute this value instead of it in the other equation ; and a new equation will thus be formed,... | |
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The equality of the two sides is not affected by this alteration, because we only change one quantity x for another •which is equal to it. By this means we obtain an equation which contains only one unknown quantity. 
