Page 137 - aljaber

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.
16 x

1 + 1 = 26
10 16 160

.

x  26  = 13
160 16

. x = (13)(160) = 5
(16)(26)

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)
x +4 .x

.x + 4 +1 = x + 5

10x + (x + 4) + 5(x + 5) = 301

16x + 29 = 301

16x = 301 − 29 = 272

. x = 272 = 17 :( ) (
16

.y x

. xy = 20 x + y = 10

. 1 + 1 = y + x = 10 = 1

x y xy 20 2

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