| William Nicholson - Natural history - 1809 - 716 pages
...one of the unknown quantities, by any of the following methods: 1" Method. In either equation, find the value of one of the unknown quantities in terms of the other and known quantities, and for it substitute this value in the other equation, which will then only... | |
| William Nicholson - Arts - 1819 - 432 pages
...one of the unknown quantities, by any of the following methods : 1st Method. In either equation find the value of one of the unknown quantities in terms of the other and known quantities, and for it substitute this value in the other equation, which will then only... | |
| Miles Bland - Geometry - 1821 - 898 pages
...by 5, and the second by 2, and then, subtracting the second from the first. 2. By substitution. Find the value of one of the unknown quantities, in terms of the other and known quantities, in the more simple of the two equations ; and substitute this value instead of... | |
| James Ryan - Algebra - 1824 - 550 pages
...20. Given ^+^=6, 64 I to find the values o / , . x and y. and += Ans. a; =12, and #=16. KULE II. Find the value of one of the unknown quantities, in terms of the other and known quantities, in the more simple of the two equations ; and substitute this value instead of... | |
| James Ryan, Robert Adrain - Algebra - 1824 - 542 pages
...Given 1+1=6, V'to ^ ;, , x , v { x and vand — |-i=5|, I Ans. **=:12,. andy=16. RULE II. 248. Find the value of one of the unknown quantities, in terms of the other and known quantities, in the more simple of the two equations ; and substitute this value instead of... | |
| Miles Bland - Algebra - 1824 - 404 pages
...by 5, and the second by 2, and then subtracting the second from the first. 2. By substitution. Find the value of one of the unknown quantities, in terms of the other and known quantities, in the more simple of the two equations ; and substitute this value instead of... | |
| George Lees - 1826 - 276 pages
...Now, x - sy^~L?—™^H- 12 - « * •— g — g "~ 2 ~~ 86. METHOD 3d, In either equation, Jind a value of one of the unknown quantities, in terms of the other and known quantities ; substitute this value for the unknown quantity in the second equation, there... | |
| John Darby (teacher of mathematics.) - 1829 - 212 pages
...2y+4z=28, it becomes 6+6+4z=28; by transposition, 4z=28 — 6 — 6, or4z=16; .-. z=— =4. RULE HI. Find the value of one of the unknown quantities, in terms of the rest of the equation, and substitute its value, thus found, in the other equation. 1. Given 3x + 2y=... | |
| Peter Nicholson - Algebra - 1831 - 326 pages
...possible values of x and y in integer numbers, suppose the numbers a, b, c, prime to each other. Find the value of one of the unknown quantities in terms of the other. Thus, if the equation be by-lc ax—by=c, then z= — ; Or, ax+by=c, then x= — - — • Increase... | |
| John Radford Young - 1839 - 332 pages
...unknown quantity may be obtained by either of the three following methods. First Method. (54.) Find the value of one of the unknown quantities in terms of the other and the known quantities, from the first equation, by the method already given. Find the value of the... | |
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