Răspuns :
Răspuns:
7x-3y=1 I×5
2x+5y=12 I×3
____________
35x-15y=5
6x+15y=36
__________
41x=41=>x=41/41=>x=1
7-3y=1=>-3y=1-7=>y=6:3=>y=2
sau
x=(12-5y)/2
7(12-5y)/2-²⁾3y=²⁾1
84-35y-6y=2
-41y=-82=>y=2
x=(12-10):2=>x=1
Răspuns:
7x-3y=1 I×5
2x+5y=12 I×3
____________
35x-15y=5
6x+15y=36
__________
41x=41=>x=41/41=>x=1
7-3y=1=>-3y=1-7=>y=6:3=>y=2
sau
x=(12-5y)/2
7(12-5y)/2-²⁾3y=²⁾1
84-35y-6y=2
-41y=-82=>y=2
x=(12-10):2=>x=1