Page 139 - aljaber
P. 139
@ @¶ìÿa@óÝy‹¾a@ u@ @QRV
2x − 19 = 6(x − 2) (. )
x ()
4 ( ) −4 ( ) 7( ) −7 () ()
77 4 4 ()
a = ax − b ba x ()
b(a − bx)
b(a2 − 1) ( )
b(a2 + 1) ( )
a(b2 + 1)
a(b2 + 1)
b2(a + 1) ( )
b2(a + 1) ( )
a(b2 + 1)
a(b2 − 1)
10y − (21 − y) = 1 y
−1 ( ) 1( ) −2 ( ) 2 ()
2:3:5 x :y :z [AHSME 1957]
a y = ax − 10 100 zyx
5 () 3( ) 3( ) 2 ()
2 2
[AHSME 1956] ( )
.
19 ( ) 18 ( ) 17 ( ) 16 ( )