Rozwiąż:
1. 2x+2y=158
4x+3x+2y+y=329
2. x+y=69
2849x+3101y=199 857
Rozw. w załączniku :)
2x+2y=158 I*(-7)
7x+3y=329 I*2
-14x-14y=-1106
14x+6y=658
+-------------------
-8y=-448 I:(-8)
y=56
2x+2y=158 I*3
7x+3y=329 I*(-2)
6x+6y=474
-14x-6y=-658
+--------------------
-8x=-184 I:(-8)
x=23
x=69-y
2849*(69-y)+3101y=199 857
196 581-2849y+3101y=199 857
-2849y+3101y=199 857-196 581
252y=3276 I:252
y=13
x+13=69
x=69-13
x=56
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Rozw. w załączniku :)
2x+2y=158 I*(-7)
7x+3y=329 I*2
-14x-14y=-1106
14x+6y=658
+-------------------
-8y=-448 I:(-8)
y=56
2x+2y=158 I*3
7x+3y=329 I*(-2)
6x+6y=474
-14x-6y=-658
+--------------------
-8x=-184 I:(-8)
x=23
2. x+y=69
2849x+3101y=199 857
x=69-y
2849*(69-y)+3101y=199 857
196 581-2849y+3101y=199 857
-2849y+3101y=199 857-196 581
252y=3276 I:252
y=13
x+13=69
x=69-13
x=56