Elementary Algebra
Elementary Algebra
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In our eReader you can find the full English version of the book. Read Elementary Algebra 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 Elementary Algebra
What reading level is Elementary Algebra book?
To quickly assess the difficulty of the text, read a short excerpt:
Ex.1. Solve 5(x + 2?j)-{Sx + nij)=U (1), 7x-dy-S(x-4:i/) = SS (2).
From (1) 6x-hl07j-Sx-Utj = U; .-. 2x-7j = 14 (3).
From (2) 7 x -9y - 3x + 12y = S8 ; .'. 4:X + 3y = SS (4).
From (3) 6x-3^ = 42; and hence we may find x = S, and y =2.
Ex. 2. Solve 3 X - ^^Lizl = ^ ■« - ^ ^^^^ 3l_ti_ 1(2.^-5)=?/ (2).
Clear of fractions. Thus from (1) 42ic-2y + 10 = 28a:-2i; .-. \4x-2y =-^\ (3).
From (2) 9?/ + 12 - lOx + 25 = 15?/ ; .-. 10x + 6y = 37 (4).
Eliminating y from (3) and (4), we find that ^ _ _ 14 X — ...— Y3 .
Eliminating x from (3) and (4) , we find that Note. Sometimes, as in the present instance, the value of the second unknown is more easily found by elimination than by substi- tuting the value of the unknown already found.
EXAMPLES XVII. b.
1. ^+2/-16, 3. ^-y=3, 5.^ + ^=10, 'x + l = u. ^-f = 8. l + y = m.
2 ^ + 1^ = 5 4. a: - ?/ = 5, 6. a-. = 3 ?/, ' ^ 2 ' ^-y = 2. ^+y = U.
x-y = 4. ' 45 3-^ 152 ALGEBRA.
7- lx-^y = 3, ^Q ^^y = U, 12. ^-^ = 4x-y = 20. 7 5^ 54 8. lx--ly = 4, x + ^ = 4f.
What to read after Elementary Algebra?
You can find similar books in the "Read Also" column, or choose other free books by H S Henry Sinclair Hall to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Ex.1. Solve 5(x + 2?j)-{Sx + nij)=U (1), 7x-dy-S(x-4:i/) = SS (2).
From (1) 6x-hl07j-Sx-Utj = U; .-. 2x-7j = 14 (3).
From (2) 7 x -9y - 3x + 12y = S8 ; .'. 4:X + 3y = SS (4).
From (3) 6x-3^ = 42; and hence we may find x = S, and y =2.
Ex. 2. Solve 3 X - ^^Lizl = ^ ■« - ^ ^^^^ 3l_ti_ 1(2.^-5)=?/ (2).
Clear of fractions. Thus from (1) 42ic-2y + 10 = 28a:-2i; .-. \4x-2y =-^\ (3).
From (2) 9?/ + 12 - lOx + 25 = 15?/ ; .-. 10x + 6y = 37 (4).
Eliminating y from (3) and (4), we find that ^ _ _ 14 X — ...— Y3 .
Eliminating x from (3) and (4) , we find that Note. Sometimes, as in the present instance, the value of the second unknown is more easily found by elimination than by substi- tuting the value of the unknown already found.
EXAMPLES XVII. b.
1. ^+2/-16, 3. ^-y=3, 5.^ + ^=10, 'x + l = u. ^-f = 8. l + y = m.
2 ^ + 1^ = 5 4. a: - ?/ = 5, 6. a-. = 3 ?/, ' ^ 2 ' ^-y = 2. ^+y = U.
x-y = 4. ' 45 3-^ 152 ALGEBRA.
7- lx-^y = 3, ^Q ^^y = U, 12. ^-^ = 4x-y = 20. 7 5^ 54 8. lx--ly = 4, x + ^ = 4f.
What to read after Elementary Algebra?
You can find similar books in the "Read Also" column, or choose other free books by H S Henry Sinclair Hall to read onlineMoreLess
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