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05.08.2019 •
Mathematics
40 points! 1. solve using the substitution method. show your work. y=2x-6 3x+y=4 2. solve using the elimination method. show your work. 2x-y=6 x+y=6
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Ответ:
-> 5x=10
-> x=2
2/ x=6-y
-> 2.(6-y)-y=6
-> 12-2y-y=6
-> -3y= -6
-> y= 2
Ответ:
(20 +10)/2
Step-by-step explanation:
20+10=30
30/2=15