A Complete Course in Algebra for Academies And High Schools.
A Complete Course in Algebra for Academies And High Schools.
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In our eReader you can find the full English version of the book. Read A Complete Course in Algebra for Academies And High Schools. Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Complete Course in Algebra for Academies And High Schools.
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185. 1. Solve the equations | 7ic - 3^/ = - 62 (1) ^ l2y-DX= 44 (2) Transposing 5 a; in (2), 2 ?/ = 5 a; + 44 /-. 5 a? + 44 /o\ ^1*' y = — ^ — (^) Substituting this in (1), 7x-3f^^^^^\ = - 62 Or, 7a. -i^^±i^ = - 62 Clearing of fractions, 14a; - 15aj — 132 = — 124 — a;= 8 Whence, a; = — 8 Substituting this value in (3), y= —^^+44 ^ ^ ' ^ns. A; = — 8, y = 2.
1^6 ALGEBRA.
RULE.
rms Find the value of one of the unknown quantities in tey of the other from one of the given equations^ and substitut th...is value for that quantity in the other equation, EXAMPLES. Solve the following b}^ the method of substitution : 2.
( x-^ y= 7, \Sx + 2y=19, 8.
(5x-i-7y = -19. 1 4a; + 5?/ = —14.
3.
(3x- y= 10. 1 x + 4y = -l.
9.
jlOo;- 7y= 9. 1 4^-15a; = -7.
4.
( Sx-4. Y = 2. \2x-5y = 6.
10.
1 Gx-5y = -'7, \\Ox-^Sy= 11.
5.
^7x-2y= 8. LSy-bx = -9, 11.
(9x + 2y = 15. \4x-\-7y= 3.
6.
( 9x — 4:y = — 4:, ll5a?-f 8^ = — 3.
12.
( 8x-{- 7y = -2S. \by-12x = -12.
7.
(2x-7y= 8. \4y-9x=19.
13 ( 7y-3x=lS9, \2x + 6y= 91.
What to read after A Complete Course in Algebra for Academies And High Schools.?
You can find similar books in the "Read Also" column, or choose other free books by Webster Wells to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
185. 1. Solve the equations | 7ic - 3^/ = - 62 (1) ^ l2y-DX= 44 (2) Transposing 5 a; in (2), 2 ?/ = 5 a; + 44 /-. 5 a? + 44 /o\ ^1*' y = — ^ — (^) Substituting this in (1), 7x-3f^^^^^\ = - 62 Or, 7a. -i^^±i^ = - 62 Clearing of fractions, 14a; - 15aj — 132 = — 124 — a;= 8 Whence, a; = — 8 Substituting this value in (3), y= —^^+44 ^ ^ ' ^ns. A; = — 8, y = 2.
1^6 ALGEBRA.
RULE.
rms Find the value of one of the unknown quantities in tey of the other from one of the given equations^ and substitut th...is value for that quantity in the other equation, EXAMPLES. Solve the following b}^ the method of substitution : 2.
( x-^ y= 7, \Sx + 2y=19, 8.
(5x-i-7y = -19. 1 4a; + 5?/ = —14.
3.
(3x- y= 10. 1 x + 4y = -l.
9.
jlOo;- 7y= 9. 1 4^-15a; = -7.
4.
( Sx-4. Y = 2. \2x-5y = 6.
10.
1 Gx-5y = -'7, \\Ox-^Sy= 11.
5.
^7x-2y= 8. LSy-bx = -9, 11.
(9x + 2y = 15. \4x-\-7y= 3.
6.
( 9x — 4:y = — 4:, ll5a?-f 8^ = — 3.
12.
( 8x-{- 7y = -2S. \by-12x = -12.
7.
(2x-7y= 8. \4y-9x=19.
13 ( 7y-3x=lS9, \2x + 6y= 91.
What to read after A Complete Course in Algebra for Academies And High Schools.?
You can find similar books in the "Read Also" column, or choose other free books by Webster Wells to read onlineMoreLess
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