Page 157 - aljaber

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xx
y

. 7 =11 .y

6.5 13

xx
y

. 5 = 10 = 1 1 .y

9.5 19 19

.1 1 ≤ x ≤ 1 1

19 y 13

(.)

[Linear Inequalities In Two Variables]

.x

ax + by < c :
ax + by ≤ c
(x1,y1 ) ()
.ax + by = c ()
.